Residential delivery area · Texas
ZIP Code 77377: Tomball, TX
ZIP code 77377 uses the postal name Tomball, Texas and lies entirely in Harris County (Census 2020 ZIP-county file). About 42,000 people live there (Census Bureau, ACS 2020-2024), the less populous of Tomball's 2 residential ZIP codes. Median household income is $129,327 (Census Bureau, ACS 2020-2024). Its land lies mostly outside any Census place; 6% is in small places.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Tomball · 2 residential ZIPs
- County
- Harris County
- Metro area
- Houston-Pasadena-The Woodlands, TX
- House district
- TX-38 119th Congress
- State
- Texas
- Time zone
- Central
- Land area
- 35.2 sq mi · 1,183 people per sq mi
Where is ZIP code 77377?
77377 centers on 30.060°, -95.672° and covers 35.2 square miles of land plus 0.3 of water. It borders 7 ZIP codes: 77429, 77375, 77362, 77355, 77070, 77433, 77447.
The map draws ZIP code areas only. For the streets inside 77377, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 77377 compare with the rest of Tomball?
| Measure | 77377 | In Tomball | In Harris County | In TX |
|---|---|---|---|---|
| People (ACS 2020-2024) | 41,680 | 2nd of 2 | 44th of 142 | 215th of 1,990 |
| Median household income | $129k | 1st of 2 | 12th of 137 | 81st of 1,172 |
| Median home value | $378k | 1st of 2 | 29th of 136 | 223rd of 1,172 |
Its median household income is higher than in 93% of U.S. residential ZIP codes, and it is denser than 80% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 77377?
The 2020 Census counted 39,711 people in 77377; the ACS, which samples households over 2020-2024, estimates 41,680. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 41,680
- 2020 Census count
- 39,711
- Households
- 13,449
- Median age
- 37.8
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 77377?
Of the 41,680 people the ACS estimates in 77377, 29.2% are under 18 and 12.3% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (60.3%), then Hispanic or Latino (19.8%).
- Under 1829.2%
- 18 to 6458.6%
- 65 and older12.3%
- White, not Hispanic60.3%
- Hispanic or Latino19.8%
- Asian, not Hispanic10.5%
- Black, not Hispanic6.3%
- Other or two or more3.1%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 77377 earn?
Median household income is $129,327 (ACS 2020-2024), the 12th highest of the 137 ranked ZIP codes in Harris County.
- Median household income
- $129,327±$15,302
- Income per person
- $52,498
- Below the poverty line
- 7.0%
- Unemployed (of the labor force)
- 4.8%
- Adults 25+ with a bachelor's degree
- 45.6%
- Adjusted gross income per tax return, 2022
- $134,30519,360 returns; wages 67% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 77377?
FHFA's house price index for 77377, built from repeat sales and appraisals of the same homes, rose 83% from 2015 to 2025 and rose 51% from 2020 to 2025, and moved −4.2% in 2025.
- Median home value (owners' estimate)
- $378,200
- Median gross rent
- $1,760
- Homes owned by their occupants
- 84.3%
- Housing units
- 13,999
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 77377?
867 business establishments had a location in this ZIP code in 2023, 193 more than in 2018; the most are in professional, scientific, and technical services (ZIP Code Business Patterns).
- Professional, scientific, and technical services143
- Construction115
- Retail trade89
- Other services (except public administration)79
- Health care and social assistance77
- Accommodation and food services65
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 77377?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 77429 | Cypress | 96,334 | $119k | 4.4 mi |
| 77375 | Tomball | 72,311 | $103k | 5.7 mi |
| 77362 | Pinehurst | 8,017 | $87k | 6.7 mi |
| 77355 | Magnolia | 32,847 | $102k | 8.1 mi |
| 77070 | Houston | 58,229 | $77k | 8.1 mi |
| 77433 | Cypress | 116,550 | $144k | 8.9 mi |
| 77447 | Hockley | 25,231 | $117k | 9.1 mi |
| 77379 | Spring | 85,190 | $108k | 8.4 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.