All states
Open MapPullPublic GIS maps in Iowa
90 public ArcGIS web maps and apps from counties, cities, and agencies in Iowa, with 1,105 layers between them. Each one opens in MapPull with its layers listed. Pick the ones you need and download them as Shapefile, DXF, GeoJSON, or KMZ, clipped to your project area. Your first 5 pulls are free, no card needed!
Black Hawk County
Layers 32 · click one to open it in MapPull
- county_poly 1
- pol_twp_poly 31
- Black_Hawk_County_After_Review 11
- HCC07_DD2023_FINAL 9
- WSR_NewPlan_4NoVaraince 6
- Waterloo_CSD_DD_Proposal2 5
- VSCSD_2023_Redistricting_Map 2
- Union_DDs_Adopted 5
- Dike_NewHartford_DirectorDistricts2023 3
- Waverly_ShellRock 1
- Waterloo 1
- Wapsie_Valley 1
- Vinton_Shellsburg 1
- Union_ 1
- Jesup 1
- Janesville 1
- Hudson 1
- Gladbrook_Reinbeck 1
- Dunkerton 1
- Dike_NewHartford 1
- Denver 1
- Cedar_Falls 1
- CityofCedarFalls_scenario3Wards 5
- Evansdale_Iowa 4
- Waterloo_Wards_2020 5
- CityofCedarFalls_scenario3precinct 15
- Waterloo_Precincts_2020 30
- BlackHawkCoSupervisor_LSAplan1 5
- Pclnbrwattr 77,564
- Roads_SupervisorDistricts 12,699
2 maps these layers come from
- Web mapSupervisor Districts30 layersOpen in MapPull →
- Web mapBlack Triangle2 layersOpen in MapPull →
Boone County
Layers 11 · click one to open it in MapPull
- CornerMarkers2016 12,654
- sections 576
- quarter 2,304
- qq 9,216
- PoliticalTownship 17
- Linn Cemetery Lots 177
- Cass / Liberty Cemetery Lots 199
- Pilot Mound Cemetery Lots 545
- MapACemetery2 12
- Cemetery Blocks 12
- CemeteryAndAddress 54
3 maps these layers come from
- Web map2016 Section Corner Ties Web Map5 layersOpen in MapPull →
- Web mapLinn Owen Cemetery Map6 layersOpen in MapPull →
- Web mapPilot Mound / Bethel Owen Cemetery Map6 layersOpen in MapPull →
Carroll County
Layers 2 · click one to open it in MapPull
2 maps these layers come from
- Web mapCarroll County Zoning & Flood Plain Map1 layersOpen in MapPull →
- Web mapSwan Lake Quick Capture1 layersOpen in MapPull →
Cedar County
Layers 2 · click one to open it in MapPull
- Zoning_Online 196
- Parcels 20,657
1 map these layers come from
- Web mapZoning Map2 layersOpen in MapPull →
Cerro Gordo County
Layers 30 · click one to open it in MapPull
- Town_Poly 13
- USA_Flood_Hazard_Reduced_Set 4,399,596
- RR_Row 3,108
- RR_Centerline 577
- Road_Row 59,709
- Road_Centerline 12,264
- US_Congress_2020 1
- School_Districts 8
- NIACC_Director_Districts 9
- MC_Elementary_School_Districts 4
- Mason_City_Precincts_and_Wards 12
- IA_Senate_District 1
- IA_House_Districts 2
- IA_community_college_areas 15
- County_Supervisor_Districts 3
- County_Precincts 8
- Clear_Lake_Sanitary_District 1
- Clear_Lake_Wards 3
- Polling_Sites 23
- Drainage_District_Area 223
- Drainage_Tiles_and_Ditches 4,474
- Geo_twp_poly 16
- Section_Poly 576
- Subdivisions 1,328
- ConveyanceDivision 23,992
- ago_parcels 32,851
- ago_points 34,867
- FIRM_Map_1996_1977 85
- FIRM_Map_2012 283
- FIRM_Map_2022 1,017
3 maps these layers come from
- Web app1930 Imagery27 layersOpen in MapPull →
- Web app1930 Imagery30 layersOpen in MapPull →
- Web mapCerro Gordo Floodplain Map4 layersOpen in MapPull →
City of Ames
Layers 15 · click one to open it in MapPull
- Cemetery Sections 257
- Cemetery Lots 4,936
- Burial Sites Label 13,296
- Sold Vacant Label 4,859
- Military Personel 1,892
- Military Flags 692
- Sold Vacant 4,859
- burial Plots with Pictures 24,762
- For Sale 7,334
- Burial Sites 13,296
- Recycling Pickup Days 8
- Cleaning - Streets 4,400
- Polygon layer 23
- AMES INCORPORATED LIMITS 1
- Four_Lane_NoHWY 597
4 maps these layers come from
- Web mapAmes Municipal Cemetery - Public10 layersOpen in MapPull →
- Web mapRecycling Pickup Days - NWM1 layersOpen in MapPull →
- Web mapAmes Tree Debris Removal - Storm 20202 layersOpen in MapPull →
- Web mapRoad Lanes2 layersOpen in MapPull →
City of Cedar Falls
Layers 1 · click one to open it in MapPull
1 map these layers come from
- Web mapCedar Falls Public Safety1 layersOpen in MapPull →
City of Coralville
Layers 98 · click one to open it in MapPull
- Parcel Nodes 185,148
- Non-Condominiums 55,180
- Condominiums 19,262
- House Numbers 83,448
- Parcel Lines 245,183
- Blocks 898
- Subdivisions 4,172
- Cemeteries 73
- Parcels 74,442
- Building on Leased Land 541
- Road Hierarchy 11,312
- Private Roads 1,776
- Park/Access Roads 244
- Trails 2,203
- Railroads 94
- Airport Runways 3
- Fire Stations 20
- Fire Hydrants 8,395
- Rural Hitch Addresses 4,074
- Rural Hitch Drop Sites 554
- Rural Hitch Warning 41
- Fire Districts 15
- 2020 (2') Contour Lines 103,197
- 220 to 880 scale 302,734
- 1758 to 3516 scale 151,190
- 7032 scale 59,939
- 2008 (2') Contour Lines 103,197
- 2006 (2') Contour Lines - Metro Area Only 254,053
- USDA NRCS Soil Survey 28,220
- Base Flood Elevation 216
3 maps these layers come from
- Web mapCoralville Infrastructure Viewer69 layersOpen in MapPull →
- Web mapCIV New Map86 layersOpen in MapPull →
- Web mapCoralville Snow Route Priority Map4 layersOpen in MapPull →
City of Council Bluffs
Layers 1 · click one to open it in MapPull
- Public-Facing CFS 41,038
3 maps these layers come from
- Web mapCFS Public Facing Mobile (dark gray)1 layersOpen in MapPull →
- Web mapCFS Public Facing Desktop (heatmap default)1 layersOpen in MapPull →
- Web mapCFS Public Facing Desktop (points default)1 layersOpen in MapPull →
City of Des Moines
Layers 1 · click one to open it in MapPull
- Address 267,690
1 map these layers come from
- Web mapDes Moines Basic Map1 layersOpen in MapPull →
City of Dubuque
Layers 11 · click one to open it in MapPull
- arcgis.arcgis.MAP_TOUR 71
- DBQCountyLine 1
- HUC12 28
- HUC10 1,155
- HUC8 131
- HUC4 14
- HUC2 1
- cold_water_streams 173
- Dubuque_Streams 4,327
- HUC12_Year_AVG 96
- SampleSiteMerge_AVG 134
4 maps these layers come from
- Web mapCity of Dubuque Green Alleys1 layersOpen in MapPull →
- Web mapHUC Map6 layersOpen in MapPull →
- Web mapHub Homepage Watersheds2 layersOpen in MapPull →
- Web mapWater Quality _3 alt colors5 layersOpen in MapPull →
City of Indianola
Layers 5 · click one to open it in MapPull
2 maps these layers come from
- Web appIndianola Current Development Cases1 layersOpen in MapPull →
- Web appOnline RAGBRAI Map (Updated)4 layersOpen in MapPull →
City of Johnston
Layers 9 · click one to open it in MapPull
- JohnstonMasks 4
- Johnston Iowa Streets 9,907
- Condominiums 429
- Cadastral Parcels 208,917
- Parcel Point 12,301
- Subdivision 9,489
- NonPrivateLandJohnstonArea 3,273
- City Boundary 111
- Corporate_Limits 1
1 map these layers come from
- Web appJohnston Corporate Boundaries Map9 layersOpen in MapPull →
City of Marion
Layers 23 · click one to open it in MapPull
- RealEstateParcel 105,892
- RealEstatePoliticalTownshipBoundaryLine 89
- RealEstateRoadCenterline 16,434
- RealEstateAddress 104,069
- SanitarySewerFlush 2,215
- CrackSealing 1,528
- ENG RD PROJECTS 83
- Sanitary Sewer 9
- Storm Sewer 15
- Sidewalk Ramp Project 61
- WaterDeptProjects 45
- Watermain Break Patches 19
- Misc Projects 57
- Bridge Maintenance 7
- Intakes and Boxouts 137
- No Parking Area Installation 1
- Sanitary Sewer MH_SR 26
- Sanitary CIPP 4
- PublicWorksPatching 84
- Trails and Sidewalks 4
- Traffic Signal Improvements 15
- Public Service Patching 69
- StreetWorkProgram 31
4 maps these layers come from
- Web mapConstruction Season Project21 layersOpen in MapPull →
- Web map2024 Projects Map16 layersOpen in MapPull →
- Web map2023 Projects Map15 layersOpen in MapPull →
- Web mapStreet Work Program5 layersOpen in MapPull →
Clay County
Layers 1 · click one to open it in MapPull
- DDClayCounty 102
1 map these layers come from
- Web mapClay County Drainage Districts1 layersOpen in MapPull →
Dallas County
Layers 4 · click one to open it in MapPull
1 map these layers come from
- Web mapDallas County I-804 layersOpen in MapPull →
Des Moines Area MPO
Layers 43 · click one to open it in MapPull
- MPO Boundary (2024) 1
- Road Network 359,413
- Level_of_Service_2050 9,968
- Level_of_Service_2030 9,756
- Regional_Trail_Gaps_2026 20
- MPO_Schools_buffer_2026 195
- EJ_Areas_Updated 113
- Employment_Access 7,632
- Housing_Bus_Stop 60,498
- Congestion (2024) 2,238
- Interstate and Non-Interstate NHS Pavement Condition 2024 3,489
- Local Pavement (2023) 18,362
- Collector Pavement (2023) 2,508
- Arterial Pavement (2023) 4,198
- PCR 2020-2024 17,026
- High Injury Network 17,213
- High Risk Network 44,444
- 2025 Central Iowa Trail Roughness Experience 3,649
- TransitStops2023 1,663
- TransitRoutes2023 329
- TrailCondition2024 1,144
- Existing Bike and Pedestrian Facilities 2,215
- MPO Bridge Condition 2024 (All Bridges) 644
- MPOTraffic_DataTool 151,554
- Reimagine DART Routes (2026) 71
- DOT_FiscallyConstrained 62
- Local_FiscallyConstrained 94
- FFY 2029 TAP Projects 8
- FFY 2029 STBG Projects 19
- Pavement Condition (2023) 25,068
3 maps these layers come from
- Web appDMAMPO Scoring Tool Map31 layersOpen in MapPull →
- Web mapMPO Members (Web Map)4 layersOpen in MapPull →
- Web mapGoal One - Bridge Conditions (All)11 layersOpen in MapPull →
Dickinson County
Layers 10 · click one to open it in MapPull
4 maps these layers come from
- Web mapDickinson County Precipitation Estimate4 layersOpen in MapPull →
- Web mapINHF MJV Dickinson County Data 20236 layersOpen in MapPull →
- Web mapINHF MJV Dickinson County Surveying6 layersOpen in MapPull →
- Web mapINHF MJV Dickinson County Surveying 20236 layersOpen in MapPull →
Hardin County
Layers 3 · click one to open it in MapPull
1 map these layers come from
- Web mapHardin County FEMA Boundaries3 layersOpen in MapPull →
Iowa Department of Natural Resources
Layers 19 · click one to open it in MapPull
- Iowa_Counties 99
- Pop_City_1990_2020 941
- Iowa DNR Urban_Tree_Inventory_Communities_Master 528
- Iowa DNR Urban_Tree_Inventory_Master 343,212
- Beach Status 99
- Trout Streams 133
- Bathymetry (selected lakes) 4,375
- Paddling Access Sites 8,245
- Paddling Hazards (Dams) 330
- Paddling Routes 961
- Trails 4,567
- Recreation Amenities 8,245
- Public Hunting Areas 1,841
- Public Area Boundaries 5,439
- Public Areas 5,439
- iowa_border_WGS84 1
- county 99
- USNG_14_100m 12,589
- USNG_15_100m 242,656
2 maps these layers come from
- Web appIowa Community Tree Inventory Viewer, 20264 layersOpen in MapPull →
- Web mapUS National Grid - Iowa DNR15 layersOpen in MapPull →
Iowa Department of Transportation
Layers 11 · click one to open it in MapPull
1 map these layers come from
- Web mapLow Distortion Projection Zones11 layersOpen in MapPull →
Iowa DNR
Layers 3 · click one to open it in MapPull
1 map these layers come from
- DashboardCWD_Positive_Web_App3 layersOpen in MapPull →
Iowa DOT
Layers 22 · click one to open it in MapPull
- Reference Post 17,979
- Bridge Line 23,643
- Townships 1,644
- Sections 56,762
- Iowa Counties 99
- TMDL Watersheds 83
- Public Lake Watersheds 138
- Stream Watersheds 103
- HUC 08 58
- HUC 10 537
- HUC 12 2,490
- City Limit Boundaries for the State of Iowa 938
- Maintenance Garages 100
- cameras 0
- Inactive 332
- Active 119
- ArcGIS.DBO.FY2024_STIP_Lines 521
- ArcGIS.DBO.FY2024_STIP_Points 699
- PMIS 4,154
- Public Railroad Crossings 5,566
- Bridge Point 23,643
- Scenic_Byways 14
1 map these layers come from
- Web appDOT Web Template22 layersOpen in MapPull →
Iowa Geological Survey
2 maps these layers come from
- Web app100Kmaps1 layersOpen in MapPull →
- Web app24Kmaps1 layersOpen in MapPull →
Iowa State University
Layers 54 · click one to open it in MapPull
- GLO_vegetation 15,499
- 1990s 357
- 1980s 1,844
- 1970s 9,769
- 1960s 19,378
- 1950s 16,947
- 1930s 20,701
- 2025 NAIP 2,355
- 2023 NAIP 13,023
- 2021 NAIP 182
- 2019 NAIP 197
- 2016 -2018 Spring 88
- 2017 NAIP 380
- 2015 NAIP 4,239
- 2014 NAIP 308
- 2013 NAIP 4,772
- 2011 NAIP 323
- 2010 NAIP 194
- 2007-2010 Spring 78
- 2009 NAIP 153
- 2008 NAIP 142
- 2007 NAIP 92
- 2006 NAIP 4,370
- 2005 NAIP 4,181
- 2004 NAIP 4,181
- 2002 Spring 117
- lidar_2020_water_breaklines 17,783
- Sinkholes 37,548
- Lineated Ridges 596
- Parabolic Dunes 154
2 maps these layers come from
- Web mapIowa Geographic Map Server54 layersOpen in MapPull →
- Web mapIowa Geographic Map Server for Mobile54 layersOpen in MapPull →
Iowa Utilities Board
Layers 11 · click one to open it in MapPull
- PLSS_Townships 1,672
- PLSS_Sections 56,878
- PLSS_Q_Sections 223,858
- PLSS_QQ_Sections 891,640
- PLSS_QQQ_Sections 3,562,458
- Electrical Service Boundaries 1,361
- IowaCounties 99
- Iowa US House of Representative Districts 4
- Iowa Senate Districts 50
- Iowa House Districts 100
- zip_poly 32,294
3 maps these layers come from
- Web mapIowa Electrical Service Area Boundary Map10 layersOpen in MapPull →
- Web mapIowa Electric Service Territory Boundaries1 layersOpen in MapPull →
- Web mapIowa Electrical Service Area Boundary Map and Zip11 layersOpen in MapPull →
Johnson County
Layers 21 · click one to open it in MapPull
- Political Boundaries (no fill) 33
- Political Boundaries (fill) 33
- TIF Districts 105
- Surrounding Cities 130
- Zip Codes (unofficial) 35
- County Boundaries 23
- Johnson County-owned parcels 154
- Road Hierarchy 11,312
- Private Roads 1,776
- Park/Access Roads 244
- Trails 2,203
- Railroads 94
- Airport Runways 3
- Fire Stations 20
- Fire Hydrants 8,395
- House Numbers 83,448
- Rural Hitch Addresses 4,074
- Rural Hitch Drop Sites 554
- Rural Hitch Warning 41
- Parcels 74,442
- Fire Districts 15
2 maps these layers come from
- Web mapFire Hydrant Map21 layersOpen in MapPull →
- Web mapFire Hydrant Map Naboo21 layersOpen in MapPull →
Lee County
Layers 18 · click one to open it in MapPull
- Park and Recreation Facilities 29
- Supervisor-Districts 5
- FM_SSMID 131
- Hwy61_Bypass_Ft_Madison 283
- Public_School_Districts 30,302
- CorpPoly 8
- Subdivision 462
- TaxParcel 30,783
- Cadastral_Line 151,208
- Cartography 18,328
- NamedRoads 8,721
- BLL 464
- ParcelPoint 31,233
- SectionPoly 581
- Sec_Twn_Rng 581
- Anno_Cadastral_Mask 112,666
- Medically_Underserved_Areas_and_Populations 4,130
- Iowa Lee County Boundary 1
3 maps these layers come from
- Web appLee County Conservation and Recreation Area Locator Map1 layersOpen in MapPull →
- Web appPublic Parcel Viewer Map15 layersOpen in MapPull →
- Web mapLee County, Iowa2 layersOpen in MapPull →
Linn County
Layers 11 · click one to open it in MapPull
- RealEstateParcel 105,892
- RealEstateBLL 988
- RealEstateSubdivision 9,433
- PLSSTownship 20
- PLSSSection 720
- HubPrintableMapGallery 119
- HubAppGallery 13
- HubFeaturedDataset 6
- RealEstateAddress 104,069
- RealEstateRoadCenterline 16,434
- RealEstatePoliticalTownship 37
1 map these layers come from
- Web mapCommunity Map11 layersOpen in MapPull →
Metropolitan Area Planning Agency
Layers 19 · click one to open it in MapPull
- Counties 6
- TMA 1
- City_Boundaries_NE_IA 105
- All_Crashes_18_26 134,705
- Safety - Segments 64,453
- Safety Intersections 23,964
- HIN - Segments 1,128
- HIN - Intersections 480
- omaha_high_injury_intersections 160
- omaha_all_mode_hin 324
- omaha_pedestrian_hin 95
- all_junctions 28,303
- all_segments 31,712
- junctions 3,383
- segments 31,784
- Cities 100
- National Highway System (NHS) 492,005
- National Bridge Inventory 624,193
- NationalBridgeInventory25TMA 907
2 maps these layers come from
- Web appSix County Map19 layersOpen in MapPull →
- Web appSix County Map12 layersOpen in MapPull →
Muscatine County
Layers 119 · click one to open it in MapPull
- Muscatine County Zoning 464
- AdministrativeAreaBoundaryLine_2K 26
- FacilitySitePoint_1K 343
- County Boundary_1K 5
- Road Centerlines_1K 4,267
- Railroad_1K 482
- Waterbodies_1K 1,754
- Waterlines_1K 1,802
- FacilitySitePoint_2K 343
- County Boundary_2K 5
- Road Centerlines_2K 4,267
- Railroad_2K 482
- Waterbodies_2K 1,754
- Waterlines_2K 1,802
- AdministrativeAreaBoundaryLine_4K 26
- FacilitySitePoint_4K 343
- County Boundary_4K 5
- Road Centerlines_4K 4,267
- Railroad_4K 482
- Waterbodies_4K 1,754
- Waterlines_4K 1,802
- AdministrativeAreaBoundaryLine_9K 26
- FacilitySitePoint_9K 343
- County Boundary_9K 5
- Road Centerlines_9K 4,267
- Railroad_9K 482
- Waterbodies_9K 1,754
- Waterlines_9K 1,802
- AdministrativeAreaBoundaryLine_18K 26
- FacilitySitePoint_18K 63
1 map these layers come from
- Web mapCounty Information Map119 layersOpen in MapPull →
Pottawattamie County
Layers 2 · click one to open it in MapPull
1 map these layers come from
- Web mapPottawattamie County, Iowa2 layersOpen in MapPull →
Scott County
Layers 23 · click one to open it in MapPull
- Flood Inundation Levels 16,647
- Protected Areas 2
- Cemeteries 3,915
- Life Events 2,345
- Sites 3,935
- Headstones 965
- Gravesites 3,604
- Gravesites_People 995
- Headstones_People 1,208
- Lots 0
- Blocks 102
- Sections 4
- PLSS Qtr-Qtr Section 8,016
- PLSS Qtr Section (Line) 4,157
- PLSS Qtr Section 2,004
- PLSS Section (Line) 1,071
- PLSS Section 501
- Geographic Townships 17
- Political Township 14
- PLSS Index 7,603
- PLSS Corner Survey 548
- Davenport PLSS Corner Survey 198
- Scott County GPS Control 113
3 maps these layers come from
- DashboardMississippi River Inundation2 layersOpen in MapPull →
- Web appNewspaper Map10 layersOpen in MapPull →
- Web mapSection Corner Index, Survey and GPS Control11 layersOpen in MapPull →
Sioux County
Layers 4 · click one to open it in MapPull
2 maps these layers come from
- Web mapSioux County Precipitation Estimate2 layersOpen in MapPull →
- Web mapSioux County Soil Erosion and Agriculture2 layersOpen in MapPull →
State of Iowa (Geodata)
Layers 1 · click one to open it in MapPull
- Wind tower 6,668
1 map these layers come from
- Open data siteWind towers in Iowa1 layersOpen in MapPull →
Story County
Layers 1 · click one to open it in MapPull
- Parcels 42,111
1 map these layers come from
- Web mapProposed Natural Resource Areas1 layersOpen in MapPull →
University of Iowa
Layers 73 · click one to open it in MapPull
- Buildings 459
- Parking Spaces Lines Below 4k 18,671
- Parking Spaces Lines Above 4k 18,671
- Parking Blocks 258
- Bike Racks 200
- Bike FixIt 14
- Public 70
- ADA Parking 89
- Faculty/Staff Permit 64
- Student Permit 5
- Meters & Mobile Payment Zones 2
- Motorcycle 30
- EV Charging Stations 3
- Loading Zone 52
- Service Zone 70
- Parking Lots 351
- Point_of_Interest 59
- Building Labels 449
- Parking Labels 73
- Street Labels 2,202
- Cambus Stops 118
- Single User Restroom Type 344
- Kinnick_Lines 481
- Skywalks 20
- FM.SDE.Trees 8,742
- Non UI Buildings 0
- CRREF Non UI Buildings 8
- Crosswalks 278
- Infrastructure 5
- Utility Pads 56
4 maps these layers come from
- Web appUI Buildings New20 layersOpen in MapPull →
- Web mapUI Buildings New19 layersOpen in MapPull →
- Web mapSingle User Restrooms58 layersOpen in MapPull →
- Web mapTree Inventory58 layersOpen in MapPull →
University of Northern Iowa
Layers 11 · click one to open it in MapPull
1 map these layers come from
- Web appPublic Map11 layersOpen in MapPull →
Wapello County
Layers 8 · click one to open it in MapPull
3 maps these layers come from
- Dashboard210839 Wapello County Roadside Vegetation Survey3 layersOpen in MapPull →
- Web mapWapello County, Iowa2 layersOpen in MapPull →
- Web mapWapello County, Ottumwa, Iowa3 layersOpen in MapPull →
Webster County
Layers 9 · click one to open it in MapPull
2 maps these layers come from
- Dashboard191536 Webster County Roadside Vegetation Survey4 layersOpen in MapPull →
- Web mapWebster County Crowdsource Map5 layersOpen in MapPull →
Winneshiek County
Layers 10 · click one to open it in MapPull
- Cemeteries 3,915
- Blocks 102
- Sections 4
- Life Events 2,345
- Sites 3,935
- Headstones 965
- Gravesites 3,604
- Gravesites_People 995
- Headstones_People 1,208
- Lots 0
1 map these layers come from
- Web appNewspaper Map10 layersOpen in MapPull →
Woodbury County
Layers 6 · click one to open it in MapPull
1 map these layers come from
- Web mapWoodbury County Iowa Fire Districts6 layersOpen in MapPull →
These maps are published by the organizations named, who own the data and set its terms of use. MapPull reads only what they make public; it doesn't host or change their data. Layer names and feature counts were read from each map on 2026-10-19 and can change when a publisher updates it. Any public ArcGIS map works, not only the ones listed: open MapPull and paste its link.