Fannin County area

Population and density of Fannin County

The Census Bureau estimates that 39,265 people lived in Fannin County on July 1, 2025. That ranks #1,228 of 3,222 county equivalents nationally and #82 of 254 in Texas. Since the April 1, 2020 estimates base of 35,836, the population has grown by 3,429 (+9.6%), compared with +8.8% for Texas as a whole.

With 877.9 square miles of land, that is 45 people per square mile (17 per km²), placing Fannin County #1,653 nationally for density and #87 in Texas. The median county equivalent has 47 people per square mile; the Texas median is 22. Put another way, there are about 14 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 Fannin County

13 incorporated places lie at least partly in Fannin County. Together they are home to 19,547 people (49.8%); the other 19,718 (50.2%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Bonham city, with 11,263 residents in the county. Among places with at least 1,000 residents in 2020, Bonham city grew fastest since then (+9%).

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

Metropolitan area

Fannin County is a central county of the Bonham, TX Micropolitan Statistical Area. Fannin County is the area’s only county equivalent, so the micro area has the same 877.9 square miles of land. By combined land it ranks #227 of 542 micropolitan areas, and #328 by population. It belongs to the Dallas-Fort Worth, TX-OK Combined Statistical Area.

ZIP codes

19 ZIP Code Tabulation Areas have land in Fannin County; 14 of them have most of their land inside the county, and the others mainly cover neighboring areas.

75413754187542375424754387543975446754477544975452754697547575476754797548875490754917549275496

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 Fannin County

Fannin County shares a land border with 6 county equivalents, including 1 in Oklahoma. It has more land than 3 of them. The largest neighbor is Grayson County (932.8 mi²) and the smallest is Delta County (256.8 mi²). Together with its neighbors, Fannin County forms a block of 5,561.3 mi² of land, of which it holds 15.8%.

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

Fannin County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 1.2 times as much. Texas’s county land could hold about 298 areas the size of Fannin County.

Another way to picture it: the same land area would fill a square about 29.6 miles (47.7 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 Fannin County?

Fannin County has more land than 2,307 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 Fannin County at #979 nationally by total area, 64 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 2.3%, compared with a national county-equivalent median of 1.2% — 1.2 percentage points higher. 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 Fannin 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.