County Maps US

Martin County, Kentucky

A county in Kentucky, ranked 97 of 120 by population.

CountyFIPS 21159

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

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Population
10,697
-555 (-4.9%) since 2020
Land area
229.6
square miles. A further 0.4% of the total area is water
Population density
46.6
people per square mile, computed rather than published
County seat
Inez
Seat of county government.
Established
1870
155 years ago
Largest city
Inez city
Population 515.

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 Martin 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 Martin County, Kentucky 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 783 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 Martin County ranks

Position among the 120 counties of Kentucky, and among all 3,144 US counties and county-equivalents. Computed from the figures on this page.

MeasureValueIn KentuckyNationally
Population10,69797th of 1202,365th of 3,144
Land area229.6 sq mi93rd of 1202,952nd of 3,144
Population density46.6 per sq mi75th of 1201,539th of 3,144
Median household income$37,042112th of 1203,102nd of 3,143

Full data for Martin County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population10,697Vintage 2025 Population Estimates
Population in 202011,252Vintage 2025 Population Estimates
2020 estimates base?11,290Vintage 2025 Population Estimates
Land area229.6 sq mi2025 Gazetteer Files
Water area0.99 sq mi2025 Gazetteer Files
Total area230.6 sq mi2025 Gazetteer Files
Population density?46.6 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$37,042American Community Survey 2020-2024 5-Year Estimates
Median home value$86,900American Community Survey 2020-2024 5-Year Estimates
Median age40.6American Community Survey 2020-2024 5-Year Estimates
Households3,854American Community Survey 2020-2024 5-Year Estimates
Housing units4,862American 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
-80
82 births, 162 deaths
Net migration
+93
More people moved in than moved out.

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

The 6 areas bordering Martin 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
Pike CountyKentucky24 mi54,721
Johnson CountyKentucky20 mi22,051
Mingo CountyWest Virginia15 mi21,455
Lawrence CountyKentucky14 mi15,765
Wayne CountyWest Virginia14 mi37,309
Floyd CountyKentucky6.6 mi34,401

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

All 120 counties of Kentucky

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

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