County Maps US

Johnston County, Oklahoma

A county in Oklahoma, ranked 57 of 77 by population.

CountyFIPS 40069

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

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Population
10,448
+206 (+2.0%) since 2020
Land area
643.1
square miles. A further 2.3% of the total area is water
Population density
16.2
people per square mile, computed rather than published
County seat
Tishomingo
Seat of county government.
Established
1907
118 years ago
Largest city
Tishomingo city
Population 3,123.

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 Johnston 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 Johnston County, Oklahoma 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 730 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 Johnston County ranks

Position among the 77 counties of Oklahoma, and among all 3,144 US counties and county-equivalents. Computed from the figures on this page.

MeasureValueIn OklahomaNationally
Population10,44857th of 772,381st of 3,144
Land area643.1 sq mi57th of 771,480th of 3,144
Population density16.2 per sq mi52nd of 772,354th of 3,144
Median household income$52,68857th of 772,620th of 3,143

Full data for Johnston County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population10,448Vintage 2025 Population Estimates
Population in 202010,242Vintage 2025 Population Estimates
2020 estimates base?10,274Vintage 2025 Population Estimates
Land area643.1 sq mi2025 Gazetteer Files
Water area15.3 sq mi2025 Gazetteer Files
Total area658.4 sq mi2025 Gazetteer Files
Population density?16.2 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$52,688American Community Survey 2020-2024 5-Year Estimates
Median home value$116,500American Community Survey 2020-2024 5-Year Estimates
Median age39.3American Community Survey 2020-2024 5-Year Estimates
Households3,891American Community Survey 2020-2024 5-Year Estimates
Housing units4,708American 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
-40
100 births, 140 deaths
Net migration
+163
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 7 areas bordering Johnston 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
Marshall CountyOklahoma26 mi16,255
Atoka CountyOklahoma18 mi14,609
Murray CountyOklahoma18 mi13,805
Pontotoc CountyOklahoma18 mi38,528
Bryan CountyOklahoma13 mi51,367
Coal CountyOklahoma12 mi5,436
Carter CountyOklahoma11 mi48,910

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

All 77 counties of Oklahoma

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

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