Gibson County area

Population and density of Gibson County

The Census Bureau estimates that 51,779 people lived in Gibson County on July 1, 2025. That ranks #998 of 3,222 county equivalents nationally and #33 of 95 in Tennessee. Since the April 1, 2020 estimates base of 50,409, the population has grown by 1,370 (+2.7%), compared with +5.8% for Tennessee as a whole.

With 602.7 square miles of land, that is 86 people per square mile (33 per km²), placing Gibson County #1,108 nationally for density and #43 in Tennessee. The median county equivalent has 47 people per square mile; the Tennessee median is 76. Put another way, there are about 7.5 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 Gibson County

10 incorporated places lie at least partly in Gibson County. Together they are home to 31,878 people (61.6%); the other 19,901 (38.4%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Milan city, with 8,367 residents in the county. The county seat, Trenton city, has 4,137 residents. By land, Humboldt city is the largest at 10.4 mi² across all its counties. Among places with at least 1,000 residents in 2020, Medina city grew fastest since then (+13.4%).

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

Metropolitan area

Gibson County is an outlying county of the Jackson, TN Metropolitan Statistical Area. Its 4 county equivalents have 184,569 residents on 1,711.2 square miles of land; Gibson County accounts for 35.2% of the land and 28.1% of the residents. By combined land it ranks #187 of 393 metropolitan areas, and #249 by population.

ZIP codes

13 ZIP Code Tabulation Areas have land in Gibson County; 9 of them have most of their land inside the county, and the others mainly cover neighboring areas.

38059382203823338259383163833038338383433835538358383693838238389

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 Gibson County

Gibson County shares a land border with 6 county equivalents. It has more land than every one of them. The largest neighbor is Carroll County (597.7 mi²) and the smallest is Crockett County (265.5 mi²). Together with its neighbors, Gibson County forms a block of 3,660.7 mi² of land, of which it holds 16.5%.

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

Gibson County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 1.7 times as much. Tennessee’s county land could hold about 68 areas the size of Gibson County.

Another way to picture it: the same land area would fill a square about 24.6 miles (39.5 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 Gibson County?

Gibson County has more land than 1,604 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 Gibson County at #1,730 nationally by total area, 112 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 0.1%, compared with a national county-equivalent median of 1.2% — 1 percentage points lower. 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 Gibson 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.