| ZIP Codes: | 11 ZIP Codes (4 Standard, 3 PO Box, 4 Unique) [See All] |
| Area Code: | 936 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:14:03 PM |
| Population: | 81,399 [See All] |
| FIPS: | 48471 |
| CBSA: | Huntsville, TX |
| Land Area: | 708 sq mi |
| Water Area: | 24 sq mi |
| Coordinates: | 30.7179, -95.5354 |
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81,399 residents live across 11 ZIPs covering 708 sq mi, served by 4 distinct USPS-recognized cities.
Population moved from 69,231 to 81,399 from 2014 to 2024 — a +17.6% change. 4 ZIPs gained residents, 2 lost.
The county's wealthiest ZIP 77358 (New Waverly, $60,424 median) and poorest ZIP 77340 (Huntsville, $48,538) are 11.8 miles apart — a 1.2× income gap across local geography.
Median home values vary 1.2× across this county — from $203,100 in 77320 (Huntsville) to $244,000 in 77340 (Huntsville).
Density varies 3× across the county — from 48 people/sq mi in 77358 (New Waverly) to 169 in 77340 (Huntsville).
Most of the decade's growth concentrated around Huntsville — top growth ZIPs averaged +44.0% over the past ten years ( 77367 , 77340 and 77320 ).
Educational attainment ranges from 15.5% bachelor's+ in 77320 (Huntsville) to 28.9% in 77340 (Huntsville) — the breadth of educational profiles across the area.
Within Texas, this is the #48 most populous of 254 counties and ranks #214 for median household income with the #33 fastest decade growth .
Hosts 4 single-entity Unique ZIPs: 77341Sam Houston State Univ ; 77343Tx State Prison ; 77348Tx State Prison ; and 77344Tx State Prison .
Weighted by population, the typical household earns about $52,653 across the county — reflecting what a typical resident sees, not a simple ZIP average.
21.1% of adults age 25+ hold a bachelor's degree or higher (11,599 of 54,906 reporting).
4 Standard delivery, 3 PO Box only, 4 single-entity Unique ZIPs serve this county.
4 ZIP codes in this county serve a single facility — typically theme parks, universities, large corporations, airports, or government complexes.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 77320 | Huntsville | Standard | 38,152 | $55,663 | 381.1 | 5.8% |
| 77340 | Huntsville | Standard | 37,517 | $48,538 | 221.7 | 37.2% |
| 77358 | New Waverly | Standard | 5,087 | $60,424 | 105.0 | -2.6% |
| 77367 | Riverside | PO Box | 446 | — | 0.0 | 89.0% |
| 77334 | Dodge | PO Box | 197 | — | 0.0 | 99.0% |
| 77341 | Huntsville | Unique | 0 | — | 0.0 | — |
| 77342 | Huntsville | PO Box | 0 | — | 0.0 | -100.0% |
| 77349 | Huntsville | Standard | — | — | 0.0 | — |
| 77343 | Huntsville | Unique | — | — | 0.0 | — |
| 77348 | Huntsville | Unique | — | — | 0.0 | — |
| 77344 | Huntsville | Unique | — | — | 0.0 | — |