77377 ZIP Code, Tomball, TX
77377 is a ZIP code in Tomball, Texas in Harris County. It covers 35 square miles of land, centered about 27 miles northwest of downtown Houston. The closest ZIP codes are 77429, 77375 and 77362. 41,680 people live here in 13,449 households. At about 1,183 people per square mile it has suburban density, and most homes are owner-occupied (84%). Median household income is $129,327, well above the Texas median of $78,476; 45% of households have children under 18.
Quick facts
- Mailing city: Tomball, TX
- County: Harris County
- Metro area: Houston
- Land area: 35 sq mi
- Population: 41,680
- Median household income: $129,327
- Carrier routes: 29 (17,441 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 41,680 |
| Households | 13,449 |
| Median household income | $129,327 |
| Income per person | $52,498 |
| Median age | 37.8 |
| Homeowners | 84.3% |
| Median home value | $378,200 |
| Median rent | $1,760 |
| Bachelor's degree or higher | 45.6% |
| Average commute (minutes) | 31.6 |
| Households with kids under 18 | 44.6% |
| Moved in the past year | 10.7% |
| Below the poverty line | 7.0% |
| Broadband internet | 93.6% |
| Speak a non-English language at home | 27.2% |
Household income
| % of households | Value |
|---|---|
| <$10K | 2.6% |
| $10–15K | 1.3% |
| $15–25K | 2.1% |
| $25–35K | 4.0% |
| $35–50K | 5.4% |
| $50–75K | 9.3% |
| $75–100K | 13.0% |
| $100–150K | 19.1% |
| $150–200K | 13.7% |
| $200K+ | 29.5% |
Age
| % of all residents | Value |
|---|---|
| <10 | 15.0% |
| 10–19 | 16.7% |
| 20–24 | 4.4% |
| 25–34 | 9.8% |
| 35–44 | 14.2% |
| 45–54 | 15.9% |
| 55–64 | 11.7% |
| 65–74 | 8.1% |
| 75+ | 4.2% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 55.4% |
| Owned outright | 25.8% |
| Rented | 14.9% |
| Vacant | 3.9% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 81.5% |
| Townhome | 1.6% |
| 2–4 units | 0.7% |
| 5–19 units | 5.0% |
| 20+ units | 5.5% |
| Mobile / other | 5.7% |
Businesses in 77377
867 business establishments with 7,308 employees (ZIP Codes Business Patterns 2023).
- Professional, Scientific, and Technical Services: 143
- Construction: 115
- Retail Trade: 89
- Other Services (except Public Administration): 79
- Health Care and Social Assistance: 77
- Accommodation and Food Services: 65
- Administrative and Support and Waste Management and Remediation Services: 61
- Wholesale Trade: 50
EDDM carrier routes
77377 has 29 USPS carrier routes with 17,441 residential and 900 business mailboxes. Open the EDDM route map.
Carrier routes in 77377
77377 has 29 USPS carrier routes (1 city (C), 28 rural (R)) with 17,441 residential and 900 business mailboxes. Routes range from 1 homes (C007) to 1,018 homes (R059); the median route has 608 homes. The Census counted 13,449 households in 77377 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 1 |
| 250–499 | 5 |
| 500–749 | 18 |
| 750–999 | 4 |
| 1,000–1,499 | 1 |
| 1,500+ | 0 |
Best routes in 77377 for…
Highest income
For bigger-ticket offers: remodeling, pools, financial planning, private schools.
- Route R048 — Est. median household income $200,000+, 643 homes
- Route R035 — Est. median household income $200,000+, 593 homes
- Route R022 — Est. median household income $198,211, 524 homes
- Route R021 — Est. median household income $176,057, 502 homes
- Route R018 — Est. median household income $175,518, 537 homes
Select these 5 routes on the route map
Often mailed by: Home services EDDM, Real estate EDDM postcards, Landscaping and lawn care mailers
Most families with kids
For tutoring, youth sports, pediatric dental, child care and family dining.
- Route R059 — Est. families with children under 18 60.6%, 1,018 homes
- Route R022 — Est. families with children under 18 53.9%, 524 homes
- Route R048 — Est. families with children under 18 51.1%, 643 homes
- Route R043 — Est. families with children under 18 51.0%, 560 homes
- Route R035 — Est. families with children under 18 50.9%, 593 homes
Select these 5 routes on the route map
Often mailed by: Dental practice EDDM, Healthcare and clinic mailers
Most homeowners
Owners decide on roofs, HVAC, lawns, solar and insurance; renters usually can't.
- Route R018 — Est. owner-occupied homes 100.0%, 537 homes
- Route R059 — Est. owner-occupied homes 98.0%, 1,018 homes
- Route R001 — Est. owner-occupied homes 97.4%, 488 homes
- Route R061 — Est. owner-occupied homes 97.0%, 771 homes
- Route R022 — Est. owner-occupied homes 96.8%, 524 homes
Select these 5 routes on the route map
Often mailed by: Roofing direct mail, HVAC postcards
Most new movers
New residents are still choosing a dentist, a gym and a lawn service.
- Route R003 — Est. residents who moved in the past year 23.0%, 638 homes
- Route R016 — Est. residents who moved in the past year 17.5%, 571 homes
- Route R004 — Est. residents who moved in the past year 16.8%, 930 homes
- Route R044 — Est. residents who moved in the past year 16.8%, 873 homes
- Route R064 — Est. residents who moved in the past year 15.1%, 672 homes
Select these 5 routes on the route map
Often mailed by: Restaurant EDDM menus and offers, Gym and fitness mailers
Newest homes
Newer subdivisions: landscaping, window treatments, fencing, security, home warranties.
- Route R035 — Est. homes built 2010 or later 69.6%, 593 homes
- Route R064 — Est. homes built 2010 or later 66.9%, 672 homes
- Route R004 — Est. homes built 2010 or later 66.5%, 930 homes
- Route R044 — Est. homes built 2010 or later 66.5%, 873 homes
- Route R048 — Est. homes built 2010 or later 66.5%, 643 homes
Select these 5 routes on the route map
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route R025 — USPS business mailboxes 150, 422 homes
- Route R052 — USPS business mailboxes 122, 676 homes
- Route R051 — USPS business mailboxes 115, 608 homes
- Route C007 — USPS business mailboxes 103, 1 homes
- Route R030 — USPS business mailboxes 77, 493 homes
Select these 5 routes on the route map
Every carrier route in 77377
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| C007 | City | 1 | 103 | $109,905 | 85.5% | 36.0% | 8.9% |
| R001 | Rural | 488 | 3 | $137,717 | 97.4% | 44.3% | 12.8% |
| R003 | Rural | 638 | 1 | $85,600 | 21.2% | 31.6% | 23.0% |
| R004 | Rural | 930 | 1 | $134,611 | 92.0% | 44.7% | 16.8% |
| R005 | Rural | 353 | 77 | $106,645 | 81.8% | 40.0% | 7.7% |
| R011 | Rural | 393 | 1 | $103,331 | 93.2% | 24.4% | 9.8% |
| R012 | Rural | 618 | 24 | $118,119 | 90.8% | 33.0% | 10.1% |
| R014 | Rural | 523 | 3 | $154,837 | 92.8% | 40.0% | 4.9% |
| R015 | Rural | 550 | 0 | $131,145 | 91.7% | 26.7% | 6.3% |
| R016 | Rural | 571 | 7 | $87,207 | 56.1% | 49.4% | 17.5% |
| R018 | Rural | 537 | 0 | $175,518 | 100.0% | 41.0% | 2.2% |
| R020 | Rural | 702 | 11 | $88,399 | 51.4% | 49.9% | 14.3% |
| R021 | Rural | 502 | 0 | $176,057 | 93.9% | 49.7% | 4.0% |
| R022 | Rural | 524 | 5 | $198,211 | 96.8% | 53.9% | 1.7% |
| R025 | Rural | 422 | 150 | $98,166 | 66.5% | 37.2% | 13.0% |
| R028 | Rural | 608 | 1 | $125,000 | 85.2% | 42.5% | 8.5% |
| R030 | Rural | 493 | 77 | $105,754 | 80.8% | 41.1% | 7.4% |
| R033 | Rural | 650 | 6 | $144,937 | 94.0% | 35.8% | 6.0% |
| R035 | Rural | 593 | 2 | $200,000+ | 87.0% | 50.9% | 7.1% |
| R040 | Rural | 910 | 11 | $104,121 | 63.0% | 50.6% | 11.3% |
| R043 | Rural | 560 | 5 | $152,463 | 72.2% | 51.0% | 12.1% |
| R044 | Rural | 873 | 1 | $134,611 | 92.0% | 44.7% | 16.8% |
| R048 | Rural | 643 | 0 | $200,000+ | 88.3% | 51.1% | 6.5% |
| R049 | Rural | 614 | 52 | $127,264 | 89.7% | 30.3% | 7.0% |
| R051 | Rural | 608 | 115 | $115,153 | 91.3% | 29.8% | 11.3% |
| R052 | Rural | 676 | 122 | $150,600 | 91.5% | 43.0% | 5.5% |
| R059 | Rural | 1,018 | 61 | $143,659 | 98.0% | 60.6% | 9.0% |
| R061 | Rural | 771 | 45 | $135,573 | 97.0% | 45.9% | 10.3% |
| R064 | Rural | 672 | 16 | $133,282 | 91.8% | 42.9% | 15.1% |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 77377 on the EDDM route map.
How route demographics are estimated
Mailbox counts come from USPS; demographics are estimates
The number of homes and businesses on each carrier route is the current USPS EDDM count. The Census Bureau does not publish figures for carrier routes, so income, homeownership, ages, families, movers and housing age on a route are EDDM2GO estimates built from Census block groups (neighborhood areas of roughly 600 to 3,000 people).
How a route gets its figures: the block-group length-share method
We trace each route's streets every 25 meters and record which block group each stretch falls in. The route's homes are spread along its streets in proportion to length, so a route with 60% of its street length in one block group is assumed to have 60% of its homes there. Each block group then contributes its Census counts in proportion to the share of its housing units that sit on the route (capped at the whole block group). Medians are recalculated from the combined income, home-value and age brackets, the way the Census Bureau computes them, not averaged.
Margins of error
Census survey figures carry a margin of error at 90% confidence; we carry it through the calculation and show it as ±. Our margins treat the route-to-block-group split as exact, so the real uncertainty is larger. Routes with fewer than 100 estimated households, large margins, or streets we could not place are flagged.
Different years
USPS mailbox counts are current. Census figures are 5-year averages for 2020–2024, so a new subdivision may have more homes on the route today than the Census counted. Use the route figures to compare routes with each other, not as an exact head count.
Why some routes show identical figures
Two routes that run through the same block group get the same percentages and medians, because the Census publishes one set of figures for the whole block group. Their mailbox counts still differ, and those are exact.
Route and mailbox counts: USPS EDDM route data. Route demographics: EDDM2GO estimates from U.S. Census Bureau American Community Survey 5-year block-group data (2020–2024) and 2024 cartographic block-group boundaries. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
Nearby ZIP codes
- 77429 — Houston city, TX (4.4 mi)
- 77375 — Tomball city, TX (5.7 mi)
- 77362 — Pinehurst CDP, TX (6.7 mi)
- 77070 — Houston city, TX (8.1 mi)
- 77355 — Stagecoach town, TX (8.1 mi)
- 77379 — Houston city, TX (8.4 mi)
- 77433 — Houston city, TX (8.9 mi)
- 77447 — Houston city, TX (9.1 mi)
Areas that include 77377
- Tomball, TX ZIP codes — 2 ZIP codes
- Harris County ZIP codes — 136 ZIP codes
- Houston ZIP code map — 238 ZIP codes
- Texas ZIP code data
Where it ranks
- No. 20 of 214: highest median household income in the Houston area
- No. 23 of 214: highest share of owner-occupied homes in the Houston area
- No. 12 of 133: highest median household income in Harris County
- No. 6 of 133: highest share of owner-occupied homes in Harris County
- No. 20 of 133: highest share of households with children in Harris County
Mail every home in 77377
Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.
Tomball EDDM mailing
EDDM guides
ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 77377, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 77377 in?
- 77377 is a Tomball, TX mailing address. By land area, 4% lies inside Tomball and 1% lies inside Houston; the rest is outside any Census-defined city or community.
- What county is 77377 in?
- 77377 is in Harris County.
- What is the population of 77377?
- About 41,680 people (±3,464), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 39,711.
- What is the median household income in 77377?
- $129,327 (±$15,302), compared with $78,476 for Texas as a whole. Half the households in the ZIP code earn more and half earn less.
- How many carrier routes and mailboxes are in 77377?
- 29 USPS carrier routes with 17,441 residential and 900 business mailboxes (18,342 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 77377?
- The closest, measured center to center: 77429 (4.4 mi, Houston), 77375 (5.7 mi, Tomball), 77362 (6.7 mi, Pinehurst), 77070 (8.1 mi, Houston), 77355 (8.1 mi, Stagecoach) and 77379 (8.4 mi, Houston).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.