County Map With Cities, Towns & County Seats
Pick a US county, or search an address, to see the county boundary together with the cities, towns and Census Designated Places inside it, plus the county seat and FIPS code.
Ready to Explore County Cities
Search any US county or click the map to view administrative boundaries, municipal limits, and county seats.
Key Cities & Communities in Cook County, IL
How to use the county map with cities
- 1Pick a county
Search a county by name or enter an address inside it.
- 2Load the county and its places
The county boundary is drawn with the cities, towns and Census Designated Places inside it.
- 3Read the county details
See the county seat and FIPS code, and click places for more detail.
County vs. City: What Is the Difference?
In the United States, municipal and county governments represent nested but distinct tiers of administrative power. A county (or county-equivalent) is an administrative subdivision of a state, responsible for judicial courts, county jails, property recordation, public health, and rural sheriff patrols.
In contrast, a city or town is a municipal corporation created by the petition of local residents or act of the state legislature. While cities manage local utilities, zoning, street maintenance, and municipal police departments, their boundaries do not always conform neatly to county lines.
Cities That Are in More Than One County
Through municipal annexation and rapid suburban growth, hundreds of American cities extend across two or more counties:
- New York City: The most famous example in the world, consisting of five separate boroughs that are each legally coterminous with a distinct New York State county (Manhattan/New York County, Brooklyn/Kings County, Queens/Queens County, Bronx/Bronx County, and Staten Island/Richmond County).
- Oklahoma City & Dallas: Both large Sunbelt metropolises have aggressively annexed territory into four and five surrounding counties respectively, leading to situations where city residents in different neighborhoods pay property taxes to different county collectors.
Unincorporated Areas and Census Designated Places
Millions of Americans live outside the corporate boundaries of any city or town in what are known as unincorporated areas. In these regions:
- The County Board of Commissioners or Supervisors acts as the sole municipal governing authority.
- The County Sheriff provides law enforcement rather than a municipal police force.
- The U.S. Census Bureau assigns these areas Census Designated Place (CDP) status for tracking statistics, though no city hall exists (e.g. Silver Spring, MD; Metairie, LA; Spring Valley, NV).
How a City Area Splits Across Counties (Calculation)
How spatial overlap and population weighting are quantified when an incorporated city straddles county borders:
Area_{\text{City in County } A} = \iint_{C \cap K_A} dx \, dy- Extract vector boundary of the City of Atlanta from state GIS clearinghouse
- Compute polygon intersection with Fulton County (FIPS 13121): 123.63 sq mi
- Compute polygon intersection with DeKalb County (FIPS 13089): 12.68 sq mi
- Sum verifying total footprint: 123.63 + 12.68 = 136.31 sq mi (100.0%)
Property deeds, tax millage rates, and court filings must be filed in the specific county where the parcel sits, regardless of the unified Atlanta postal address.
Major U.S. Cities in More Than One County (Table)
Notable metropolitan cities whose municipal borders span across multiple county jurisdictions:
Multi-County Municipalities in the United States
Data sourced from US Census Bureau 2024 boundary and annexations files.
| City Name | State | Counties Encompassed | Population | Primary Administrative Seat |
|---|---|---|---|---|
| New York City | New York | New York (Manhattan), Kings (Brooklyn), Queens, Bronx, Richmond (Staten Island) | 8,258,035 | 5 Distinct Counties |
| Atlanta | Georgia | Fulton, DeKalb | 498,715 | Fulton County (90%) |
| Dallas | Texas | Dallas, Collin, Denton, Kaufman, Rockwall | 1,304,379 | Dallas County |
| Kansas City | Missouri | Jackson, Clay, Platte, Cass | 508,090 | Jackson County |
| Oklahoma City | Oklahoma | Oklahoma, Canadian, Cleveland, Pottawatomie | 681,054 | Oklahoma County |
| Aurora | Colorado | Arapahoe, Adams, Douglas | 386,261 | Arapahoe County |
County Map With Cities: Accuracy and Limitations
Living or operating within a multi-county or unincorporated municipality involves unique legal distinctions:
- Emergency Response Routing: 911 dispatch may be handled by the municipal police or the county sheriff depending on exact parcel coordinates.
- School Districts: In many states, school board boundaries are independent of both city and county lines.
- Voting Precincts: You must vote for local county commissioners based on the county in which your residence is situated, even if your city mayor represents residents in neighboring counties.
Related Civic & Mapping Tools
Query your current municipality with What City Am I In? or explore all counties with the Map with Counties.
Quick facts about the county map with cities
| Fact | Value | Notes |
|---|---|---|
| Municipal Coverage | Incorporated & Unincorporated | Cities, towns, villages, and CDPs |
| Boundary Data | US Census cartographic boundaries (us-atlas 1:10M) | High-resolution cartographic boundaries |
| Administrative Role | County Seat Highlighted | Primary judicial and government hub |
Edge cases and exceptions
Consolidated City-County Governments
Entities like Denver (CO), San Francisco (CA), Philadelphia (PA), and Jacksonville/Duval County (FL) operate as consolidated city-county governments where municipal and county boundaries are identical.
The county map with cities: worked examples
Cook County Municipalities Map
Scenario: Exploring incorporated towns inside Cook County, Illinois.
Outcome: Displays Chicago alongside suburban municipalities including Evanston, Cicero, Skokie, and Schaumburg within Cook County borders.
Frequently asked questions about the county map with cities
What is the difference between a county and a city?
A county is a first-order political subdivision of a state, while a city is an incorporated municipal corporation organized within a county.
Can a city exist in multiple counties?
Yes. Major cities like New York City (5 counties), Dallas (5 counties), and Atlanta (2 counties) span across multiple county borders.
How are cities shown on the county map?
Incorporated municipalities and Census Designated Places are displayed with the county for context.
What is the difference between a town and a CDP?
A town is an incorporated municipality. A CDP is a statistical area with no local government.
How do I find all cities in a county?
Search the county or click it on the map to list its municipalities and county seat.
What is a county seat?
The town that houses the county government, courthouse and records.
Can a city be in two counties?
Yes. Many large cities span county lines.
Where do I find county government services?
The county seat typically hosts the courthouse, assessor, recorder and clerk offices.
Why do some states have townships?
In the Midwest and Northeast, townships are subdivisions of counties with their own governments.
Is the map based on official boundaries?
Boundaries are drawn from open map data and are for reference. Check county GIS for legal limits.
Keep exploring
What to do with this result
- What County Am I In?Use this to find out what county you are in.
- Interactive US County Map (All 3,143 Counties)Use this to explore the interactive US county map.
- Find Cities in a RadiusUse this to list cities within a radius.
- Map With County Lines (County Boundaries on a Street Map)Use this to show county lines on a street map.
- Population Within a Radius CalculatorUse this to estimate population within a radius.
Related map tools
Blog posts, studies & methodology
Printable blank maps
- Printable blank map libraryWorld, continent, US and state outline maps (PDF/PNG/SVG).
- Blank map: United States All Counties MapFree printable outline map.
- Blank map: United States with State BordersFree printable outline map.
- Blank map: United States with State CapitalsFree printable outline map.
- Blank map: United States OutlineFree printable outline map.
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