ZIP code · Diana · Texas · United States
ZIP code 75640 — Diana
ZIP code 75640 serves Diana, Texas.
- Postal code
- 75640Single source Value from one source, not cross-checked.
- City
- Diana
- County
- Upshur FIPS 48459
- State
- Texas
- Country
- United States
- Coordinates
- 32.7698, -94.7032 — precision precise (locality)
View on OpenStreetMap - Population
- 6,338 (ZCTA, ACS 5-year)
- Population density
- 73 / sq mi
- Land area
- 86.9 sq mi (225.1 km²) (ZCTA, ACS 5-year)
- Median household income
- $79,353
- Per-capita income
- $33,922
- Median age
- 35.1
- Households
- 2,224
- Housing units
- 2,343
- Median home value
- $263,000
- Median gross rent
- $1,167 / month
- Congressional districts
- TX-1 (also TX-5) (119th Congress)
- USDA hardiness zone
- 8b (15 to 20 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/Chicago (UTC−6 / UTC−5 DST)
- Area code
- 903 (from the nearest rate centre)Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.
Tools: compare 75640 with another ZIP · ZIPs within 25 miles · distance from 75640
Map of ZIP code 75640
Climate — monthly normals
Warmest month Aug (avg high 94°F), coldest Jan (avg low 36°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 56 | 61 | 69 | 75 | 82 | 89 | 93 | 94 | 88 | 78 | 67 | 58 |
| Avg low °F | 36 | 39 | 46 | 54 | 63 | 70 | 73 | 72 | 65 | 54 | 44 | 38 |
| Precip in | 4.5 | 4.5 | 4.9 | 4.8 | 5.6 | 4.3 | 3.5 | 3.0 | 3.8 | 4.8 | 4.0 | 5.3 |
NOAA 1991–2020 climate normals from the nearest station: DIANA 2 W (6.6 mi) · NOAA NCEI
Places in ZIP 75640
- 2 schools
- 1 supermarkets
- 2 restaurants & cafés
- 2 playgrounds
- 10 places of worship
- 2 banks
- 4 gas stations
Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page