ZIP code · Houston · Texas · United States
ZIP code 77021 — Houston
ZIP code 77021 serves Houston, Texas.
- Postal code
- 77021Single source Value from one source, not cross-checked.
- City
- Houston
- County
- Harris FIPS 48201
- State
- Texas
- Country
- United States
- Coordinates
- 29.6954, -95.3562 — precision precise (locality)
View on OpenStreetMap - Population
- 24,884 (ZCTA, ACS 5-year)
- Population density
- 4,095 / sq mi
- Land area
- 6.1 sq mi (15.7 km²) (ZCTA, ACS 5-year)
- Median household income
- $45,034
- Per-capita income
- $37,707
- Median age
- 36.8
- Households
- 10,998
- Housing units
- 12,819
- Median home value
- $203,900
- Median gross rent
- $1,193 / month
- Congressional districts
- TX-18 (also TX-9) (119th Congress)
- USDA hardiness zone
- 9b (25 to 30 °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)
Tools: compare 77021 with another ZIP · ZIPs within 25 miles · distance from 77021
Map of ZIP code 77021
Climate — monthly normals
Warmest month Aug (avg high 94°F), coldest Jan (avg low 44°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 63 | 67 | 73 | 79 | 86 | 91 | 93 | 94 | 90 | 82 | 72 | 65 |
| Avg low °F | 44 | 49 | 54 | 61 | 69 | 75 | 77 | 77 | 72 | 63 | 53 | 46 |
| Precip in | 4.0 | 2.8 | 3.8 | 5.2 | 5.1 | 7.9 | 4.5 | 3.4 | 4.5 | 5.4 | 3.4 | 4.3 |
NOAA 1991–2020 climate normals from the nearest station: HOUSTON-PORT (5.7 mi) · NOAA NCEI
Places in ZIP 77021
- 12 schools
- 1 colleges & universities
- 3 hospitals & clinics
- 3 doctors & dentists
- 5 pharmacies
- 1 supermarkets
- 22 restaurants & cafés
- 1 bars & pubs
- 11 parks
- 15 playgrounds
- 1 gyms & sports centres
- 1 libraries
- 1 post offices
- 30 places of worship
- 4 banks
- 23 gas stations
- 2 police & fire 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