Geography of Fannin County
Fannin County is built around Bonham and a handful of smaller towns, with about 39,265 residents across 892 square miles of mixed town and countryside.
It lies in the North Texas region at about 33.59° N, 96.11° W and is 163rd in size among Texas's 254 counties. It is a border county, touching Oklahoma. Fannin County shares boundaries with 5 other Texas counties, and the closest major cities are Dallas (about 69 miles away in a straight line) and Fort Worth (about 92 miles).
North Texas runs from the Dallas–Fort Worth Metroplex out to the Red River and the Rolling Plains. It mixes one of America's largest urban regions with wheat fields, cattle country and small towns that grew up along railroads.
For a broader view of how Fannin County fits within the state, download our free Texas map with counties and cities PDF — a printable, high-resolution reference showing all 254 Texas counties labeled with their county seats.
Population & demographics
With approximately 39,265 residents across 892 square miles, Fannin County has a population density of about 44.0 people per square mile. Like much of West and South Texas, the county is sparsely populated, with wide-open country between settlements.
County seat: Bonham
If you need an official record from Fannin County — a deed, a birth certificate, a court filing — Bonham is where it is kept. Like every Texas county seat, it hosts the courthouse and the main offices of county government. Bonham also serves as the main shopping, school and healthcare center for much of the county.
History & name origin
Fannin County was established in 1837 and was named for James Walker Fannin, Jr. (1805–1836), the commander of the Texans killed in the Goliad Massacre. It was carved from territory previously part of Red River County.
Fannin County, Texas — frequently asked questions
Quick answers about Fannin County geography, population, county seat, neighboring counties, and how to use the maps on this page. Figures are sourced from the U.S. Census Bureau; answers are written and reviewed by the Texas County Map team.
Where is Fannin County, Texas located?+
Fannin County is located in the North Texas region of Texas at approximately 33.594° N, 96.107° W. It is one of the 254 counties of Texas and carries U.S. Census FIPS code 48147. The interactive map on this page renders the official U.S. Census TIGER boundary for Fannin County over real-world OpenStreetMap, Esri satellite, and topographic basemaps.
How big is Fannin County in square miles?+
Fannin County covers approximately 892 square miles of land in the North Texas region — a mid-sized Texas county. By land area it ranks 163rd out of 254 Texas counties. The full bounding box of the county is rendered to scale on the interactive map and matches the U.S. Census TIGER 2023 polygon.
What is the population of Fannin County, Texas?+
Fannin County has a population of approximately 39,265 residents. With 892 square miles of land, that works out to a population density of about 44.0 people per square mile, which is rural for a Texas county. That makes Fannin County the 82nd most populous of the 254 counties in Texas.
What is the county seat of Fannin County?+
Bonham is the county seat of Fannin County, Texas, which was organized in 1837 and named for James Walker Fannin, Jr. (1805–1836), the commander of the Texans killed in the Goliad Massacre. Fannin County was originally carved out of Red River County. County government offices, courthouses, and most public records for Fannin County are located in Bonham.
Which Texas counties border Fannin County?+
Fannin County shares borders with Lamar, Hunt, Delta, Collin, and Grayson counties. These 5 neighboring counties are highlighted on the schematic boundary map and linked at the bottom of this page so you can quickly compare population, area, and county seats across the North Texas region.
Where can I download or print a map of Fannin County?+
Use the "Download PDF" button below the Fannin County map on this page to save a letter-size PDF of the county boundary, neighboring counties and incorporated places, drawn from U.S. Census Bureau 2023 boundary files. The "Official TxDOT road map" button downloads the Texas Department of Transportation county road mapbook for Fannin County. Both files are stored on this site and download directly. Our free Texas map with counties and cities PDF shows all 254 counties on one sheet.
What is the FIPS code for Fannin County, Texas?+
The full 5-digit U.S. Census FIPS code for Fannin County is 48147, made up of Texas state code 48 and the 3-digit county code 147. This is the same FIPS code used by the U.S. Census Bureau TIGER/Line files, the American Community Survey, and most federal datasets that key on county.