Johnson County area

Population and density of Johnson County

The Census Bureau estimates that 9,310 people lived in Johnson County on July 1, 2025. That ranks #2,538 of 3,222 county equivalents nationally and #127 of 159 in Georgia. Since the April 1, 2020 estimates base of 9,185, the population has grown by 125 (+1.4%), compared with +5.5% for Georgia as a whole.

With 303 square miles of land, that is 31 people per square mile (12 per km²), placing Johnson County #1,985 nationally for density and #122 in Georgia. The median county equivalent has 47 people per square mile; the Georgia median is 69. Put another way, there are about 21 acres of land per resident.

U.S. Census Bureau, Vintage 2025 population estimates. Estimates are revised each year and are not decennial census counts. Density divides the whole population by the whole county’s land area, so it describes an average, not how settlement is distributed within the county. Population sources and methods.

Cities and towns in Johnson County

3 incorporated places lie at least partly in Johnson County. Together they are home to 4,069 people (43.7%); the other 5,241 (56.3%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Wrightsville city, with 3,585 residents in the county.

Population: U.S. Census Bureau Vintage 2025 subcounty estimates, counting only the part of each place inside Johnson County. Land: 2026 Census Gazetteer, for the whole place even where it extends into other counties. How communities are listed.

Metropolitan area

Johnson County is an outlying county of the Dublin, GA Micropolitan Statistical Area. Its 2 county equivalents have 60,351 residents on 1,110.4 square miles of land; Johnson County accounts for 27.3% of the land and 15.4% of the residents. By combined land it ranks #153 of 542 micropolitan areas, and #161 by population.

ZIP codes

5 ZIP Code Tabulation Areas have land in Johnson County; 2 of them have most of their land inside the county, and the others mainly cover neighboring areas.

3041331002310493108931096

ZIP Code Tabulation Areas are the Census Bureau’s approximations of USPS ZIP Code service areas, from the 2020 Census relationship files. Lighter codes have less than half of their land in this county. Post-office-box and single-address ZIP Codes have no tabulation area.

Counties bordering Johnson County

Johnson County shares a land border with 5 county equivalents. Each of them has more land than Johnson County. The largest neighbor is Laurens County (807.3 mi²) and the smallest is Wilkinson County (449.2 mi²). Together with its neighbors, Johnson County forms a block of 3,445.2 mi² of land, of which it holds 8.8%.

How big is Johnson County compared with U.S. states?

Johnson County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 3.4 times as much. Georgia’s county land could hold about 190 areas the size of Johnson County.

Another way to picture it: the same land area would fill a square about 17.4 miles (28 km) on each side. Real county shapes are rarely square, so this is a scale reference rather than a width or driving distance.

State figures are the sums of each state’s county-equivalent land measurements in the same Census release, so states and counties are compared on the same basis. Published state totals can differ slightly because of rounding. Compare all states · Counties bigger than entire states.

What stands out about Johnson County?

Johnson County has more land than 418 of the other 3,221 county equivalents in the dataset.

A median is the middle county-equivalent measurement, not the average of the largest and smallest. All three bars use the same linear scale. Very small areas may appear as a thin sliver; the labels retain their values.

Does including water change its rank?

Using land plus water places Johnson County at #2,838 nationally by total area, 34 places farther from the top than its land rank. Other county equivalents gain more area when their water measurements are included.

Its water share is 1.2%, compared with a national county-equivalent median of 1.2%. The two percentages are within 0.1 percentage points of each other. This describes the statistical geography’s land/water mix, not flood exposure or developable land.

Closest positions in the national land ranking

These entries sit immediately beside Johnson County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Calculated from the same Census release as the area table. Total-area order uses original ALAND + AWATER; water shares and chart labels use published square miles. Calculation details.