County Maps US

Marshall County, Kansas

A county in Kansas, ranked 40 of 105 by population.

CountyFIPS 20117

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

Download SVGFull Kansas map downloads

Population
9,852
-168 (-1.7%) since 2020
Land area
900.2
square miles. A further 0.5% of the total area is water
Population density
10.9
people per square mile, computed rather than published
County seat
Marysville
Seat of county government.
Established
1855
170 years ago
Largest city
Marysville city
Population 3,385.

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 Marshall 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 Marshall 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 800 by 799 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 Marshall 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
Population9,85240th of 1052,419th of 3,144
Land area900.2 sq mi23rd of 105854th of 3,144
Population density10.9 per sq mi50th of 1052,539th of 3,144
Median household income$68,41936th of 1051,307th of 3,143

Full data for Marshall County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population9,852Vintage 2025 Population Estimates
Population in 202010,020Vintage 2025 Population Estimates
2020 estimates base?10,031Vintage 2025 Population Estimates
Land area900.2 sq mi2025 Gazetteer Files
Water area4.9 sq mi2025 Gazetteer Files
Total area905.1 sq mi2025 Gazetteer Files
Population density?10.9 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$68,419American Community Survey 2020-2024 5-Year Estimates
Median home value$127,700American Community Survey 2020-2024 5-Year Estimates
Median age43.2American Community Survey 2020-2024 5-Year Estimates
Households4,176American Community Survey 2020-2024 5-Year Estimates
Housing units4,751American 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
-39
86 births, 125 deaths
Net migration
-19
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 6 areas bordering Marshall 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
Washington CountyKansas30 mi5,533
Nemaha CountyKansas30 mi10,054
Pottawatomie CountyKansas18 mi27,186
Gage CountyNebraska18 mi21,711
Riley CountyKansas12 mi72,598
Pawnee CountyNebraska12 mi2,510

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.