Zip Code 75840 — Fairfield, TX
75840 is a ZIP Code associated with Fairfield, TX, located within Freestone. 75840 ranks #1 out of 6 ZIP codes in Freestone County by population (and #927 out of 1,990 in TX). The area supports an estimated population of 6,994 residents across Data Pending housing units, with a population density of 10.1 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (31.784120, -96.085520)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 75840 |
| Primary City | Fairfield |
| State / Province | TX |
| County | Freestone |
| Total Population | 6,994 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 10.1 people/sq mi |
| Timezone | America/Chicago |
How 75840 Compares
| Metric | ZIP 75840 | Freestone County | TX State Average |
|---|
| Population | 6,994 | 18,381 (Total) | 30,188,035 (Total) |
| Average ZIP Income | Data Pending | N/A | N/A |
| Population Density | 10.1 /sq mi | -- | -- |
| County Pop Rank | #1 of 6 | -- | -- |
Nearby ZIP Codes
| ZIP Code | City | Distance | Population | Median Income |
|---|
| Zip 75886 | Tennessee Colony | 10.2 mi | 2,456 | N/A |
| Zip 75884 | Tennessee Colony | 11.3 mi | 2,697 | N/A |
| Zip 75859 | Streetman | 12.1 mi | 2,337 | N/A |
| Zip 75861 | Tennessee Colony | 12.5 mi | 1,381 | N/A |
| Zip 75860 | Teague | 14.6 mi | 6,624 | N/A |
Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →