Iowa County Map with Cities
Explore geography, source year and identifier definitions before using the map.
Explore this historical reference layer and search its county or county-equivalent names and FIPS identifiers. Alphabetical list as contained in the bundled historic dataset. This is not a verified current count. 99 reference entries Source limitations: Geometry from bundled Basemap Iowa Map
County and County-Equivalent Reference List
County / equivalent FIPS (dataset) Adair 19001 Adams 19003 Allamakee 19005 Appanoose 19007 Audubon 19009 Benton 19011 Black Hawk 19013 Boone 19015 Bremer 19017 Buchanan 19019 Buena Vista 19021 Butler 19023 Calhoun 19025 Carroll 19027 Cass 19029 Cedar 19031 Cerro Gordo 19033 Cherokee 19035 Chickasaw 19037 Clarke 19039 Clay 19041 Clayton 19043 Clinton 19045 Crawford 19047 Dallas 19049 Davis 19051 Decatur 19053 Delaware 19055 Des Moines 19057 Dickinson 19059 Dubuque 19061 Emmet 19063 Fayette 19065 Floyd 19067 Franklin 19069 Fremont 19071 Greene 19073 Grundy 19075 Guthrie 19077 Hamilton 19079 Hancock 19081 Hardin 19083 Harrison 19085 Henry 19087 Howard 19089 Humboldt 19091 Ida 19093 Iowa 19095 Jackson 19097 Jasper 19099 Jefferson 19101 Johnson 19103 Jones 19105 Keokuk 19107 Kossuth 19109 Lee 19111 Linn 19113 Louisa 19115 Lucas 19117 Lyon 19119 Madison 19121 Mahaska 19123 Marion 19125 Marshall 19127 Mills 19129 Mitchell 19131 Monona 19133 Monroe 19135 Montgomery 19137 Muscatine 19139 O'Brien 19141 Osceola 19143 Page 19145 Palo Alto 19147 Plymouth 19149 Pocahontas 19151 Polk 19153 Pottawattamie 19155 Poweshiek 19157 Ringgold 19159 Sac 19161 Scott 19163 Shelby 19165 Sioux 19167 Story 19169 Tama 19171 Taylor 19173 Union 19175 Van Buren 19177 Wapello 19179 Warren 19181 Washington 19183 Wayne 19185 Webster 19187 Winnebago 19189 Winneshiek 19191 Woodbury 19193 Worth 19195 Wright 19197 UScounties shapefile (EPSG:4269), source vintage not verified. Do not quote its numeric totals as present-day administrative counts. Downloaded SVG files include no legal accuracy warranty.
Understanding the county-equivalent system in Iowa
Some city and county boundaries overlap, while unincorporated areas lie outside municipal limits. County maps must state the record year and jurisdiction definition. County-equivalent units are the level used in many Census datasets; state-level terminology and changes over time can affect counts and boundaries.
Examples of Iowa county GEOIDs
| Legacy reference name | Five-digit GEOID | County part |
|---|---|---|
| Adair | 19001 |
001 |
| Adams | 19003 |
003 |
| Allamakee | 19005 |
005 |
| Appanoose | 19007 |
007 |
| Audubon | 19009 |
009 |
| Benton | 19011 |
011 |
The first two FIPS digits identify the state in this dataset (19); the following three digits identify a county or county-equivalent record. Preserve leading zeros when storing these IDs in spreadsheets, CSV or databases.
How to read and verify the county map
- Start with the state outline and use the on-page search to find a county or full FIPS code.
- Check whether the entry represents a county, parish, borough, census area or independent city.
- Use the source-year label when referencing boundaries or computing statistics.
- For modern population, area or county-seat statistics, join this table to a verified dated government source rather than guessing from the map.
County lists versus postal addresses
A ZIP code, county name and postal city serve different purposes. A mailing address can use a neighboring city’s name, and one ZIP can intersect several counties. Use a point-in-polygon lookup against a properly dated jurisdiction layer when an exact address-to-county answer matters.
Official data to cross-check
The U.S. Census Bureau publishes 2025 Gazetteer county tables with area and representative coordinate fields, and TIGER/Line boundaries. The Gazetteer files do not include population; a separately dated Census or ACS table is required for that value.
10 questions about Iowa
Questions based on search intent and competitor topics; not a verified Google People Also Ask feed.
How many counties or county equivalents are listed for Iowa?
The bundled reference currently contains 99 entries for Iowa. Because the underlying source vintage is not confirmed against the latest Census release, verify the authoritative current count before quoting it.
What is the county FIPS code for Iowa?
Iowa has state-level FIPS prefix 19. A complete county GEOID combines the two-digit state code and a three-digit county code. For example, Adair has the stored GEOID 19001.
How do I locate a county on the Iowa map?
Use the county-name/FIPS table and consult an authoritative labeled map to match a name to its boundary. A point near a border needs a precise coordinate-based check.
Can I download a blank Iowa county map?
Check the associated printable-map page. County outlines require actual county geometry; an exterior state outline alone does not provide individual county borders.
Does the list include all current county equivalents in Iowa?
The page displays records in the bundled historical reference, not a certified current list. Independent cities and similar county equivalents require careful definition.
Is the Iowa county data from the latest Census year?
No current-vintage certification is claimed for this local dataset. Compare names and GEOIDs against a dated TIGER/Line or Census Gazetteer file.
What is the difference between a county and a ZIP Code in Iowa?
County boundaries are government/statistical administrative areas; ZIP Codes are postal delivery identifiers and often cross counties. ZIP Code Tabulation Areas are Census approximations.
Can I look up a Iowa county by address?
An authoritative geocoding service or Census Geocoder can map an address to an official county. County names alone do not determine the county of every address.
Where do I find county population and land area for Iowa?
Use a named Census population-estimate vintage for people and a Gazetteer/TIGER data year for area. Avoid mixing Census years when calculating density or ranks.
Can I use Iowa county borders for property or legal decisions?
No. The reference is intended for education and general exploration. Property and administrative boundary decisions require current authoritative local records and licensed surveys where appropriate.
Editorial and data status: This is an unpublished reference draft. The information must be checked before the page can be treated as current geographic data or production-ready research.