County Maps US

Montgomery County, Kansas

A county in Kansas, ranked 19 of 105 by population.

CountyFIPS 20125

Within Kansas
Montgomery County, highlighted, with the areas around it. Boundaries generalised from the 2025 Census cartographic boundary file; neighbour fills carry no data. The dot marks Independence, the county seat, located via the 2025 Census Gazetteer.

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Population
30,177
-1,224 (-3.9%) since 2020
Land area
643.6
square miles. A further 1.2% of the total area is water
Population density
46.9
people per square mile, computed rather than published
County seat
Independence
Seat of county government.
Established
1867
158 years ago
Largest city
Coffeyville city
Population 8,460.

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; Wikidata (CC0), Wikidata. Retrieved 30 August 2026.

Satellite view

Aerial imagery of Montgomery County with its boundary drawn on top. A map shows you the shape; this shows you what is inside it, and which side of the line a place falls on.

Aerial view of Montgomery County, Kansas from the USGS National Map, with its boundary outlined
Imagery: USGS National Map, USGS Imagery Only, public domain, requested from USGS by your browser when you reach this point on the page, at 742 by 800 pixels. The boundary is the 2025 Census cartographic boundary file, reprojected to Web Mercator to match the imagery. You can also open the USGS National Map viewer.

Where Montgomery County ranks

Position among the 105 counties of Kansas, and among all 3,144 US counties and county-equivalents. Computed from the figures on this page.

MeasureValueIn KansasNationally
Population30,17719th of 1051,440th of 3,144
Land area643.6 sq mi76th of 1051,479th of 3,144
Population density46.9 per sq mi15th of 1051,535th of 3,144
Median household income$55,69794th of 1052,425th of 3,143

Full data for Montgomery County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population30,177Vintage 2025 Population Estimates
Population in 202031,401Vintage 2025 Population Estimates
2020 estimates base?31,489Vintage 2025 Population Estimates
Land area643.6 sq mi2025 Gazetteer Files
Water area7.9 sq mi2025 Gazetteer Files
Total area651.5 sq mi2025 Gazetteer Files
Population density?46.9 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$55,697American Community Survey 2020-2024 5-Year Estimates
Median home value$101,700American Community Survey 2020-2024 5-Year Estimates
Median age41.2American Community Survey 2020-2024 5-Year Estimates
Households12,880American Community Survey 2020-2024 5-Year Estimates
Housing units15,538American Community Survey 2020-2024 5-Year Estimates

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; US Census Bureau, American Community Survey, American Community Survey 2020-2024 5-Year Estimates, released 29 January 2026. Population density is computed here, not published: it divides the Vintage 2025 population estimate by the 2025 Gazetteer land area, which are two different Census products. Retrieved 30 August 2026.

How the population changed

The Census Bureau publishes the components behind an estimate, not just the total. For the year to July 2025:

Births minus deaths
-171
279 births, 450 deaths
Net migration
-61
More people moved out than moved in.

Source: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026. Retrieved 30 August 2026.

The 7 areas bordering Montgomery County

Ordered by the length of the border actually shared, which the Census Bureau publishes in its county adjacency file and which no other county reference presents.

Bordering areaStateShared borderPopulation
Labette CountyKansas27 mi19,685
Wilson CountyKansas24 mi8,299
Chautauqua CountyKansas21 mi3,321
Nowata CountyOklahoma15 mi9,522
Washington CountyOklahoma9.8 mi54,037
Elk CountyKansas6.2 mi2,458
Neosho CountyKansas0.2 mi15,637

Source: US Census Bureau, County Adjacency File, 2025 County Adjacency File, released 15 September 2025. Retrieved 30 August 2026.

All 105 counties of Kansas

Open the interactive Kansas county map, or jump straight to any of them.

Data on this page last rebuilt 30 August 2026. How these figures are produced.