77031 ZIP Code, Houston, TX
77031 is a ZIP code in Houston, Texas in Harris County. It covers 3.2 square miles of land, centered about 13 miles southwest of downtown Houston. The closest ZIP codes are 77071, 77477 and 77099. 15,179 people live here in 5,672 households. At about 4,808 people per square mile it is built up to city-neighborhood density, and owners and renters are mixed (49% own). Median household income is $47,162, well below the Texas median of $78,476.
Quick facts
- Mailing city: Houston, TX
- County: Harris County
- Metro area: Houston
- Land area: 3.2 sq mi
- Population: 15,179
- Median household income: $47,162
- Carrier routes: 8 (6,241 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 15,179 |
| Households | 5,672 |
| Median household income | $47,162 |
| Income per person | $26,377 |
| Median age | 36.8 |
| Homeowners | 48.6% |
| Median home value | $232,500 |
| Median rent | $1,087 |
| Bachelor's degree or higher | 24.2% |
| Average commute (minutes) | 29.1 |
| Households with kids under 18 | 33.9% |
| Moved in the past year | 15.0% |
| Below the poverty line | 25.6% |
| Broadband internet | 84.5% |
| Speak a non-English language at home | 62.8% |
Household income
| % of households | Value |
|---|---|
| <$10K | 6.8% |
| $10–15K | 3.5% |
| $15–25K | 14.8% |
| $25–35K | 14.1% |
| $35–50K | 12.1% |
| $50–75K | 13.0% |
| $75–100K | 8.1% |
| $100–150K | 15.1% |
| $150–200K | 8.2% |
| $200K+ | 4.3% |
Age
| % of all residents | Value |
|---|---|
| <10 | 11.5% |
| 10–19 | 16.7% |
| 20–24 | 8.7% |
| 25–34 | 12.1% |
| 35–44 | 13.6% |
| 45–54 | 13.8% |
| 55–64 | 9.1% |
| 65–74 | 9.0% |
| 75+ | 5.5% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 26.0% |
| Owned outright | 16.3% |
| Rented | 43.1% |
| Vacant | 14.7% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 45.8% |
| Townhome | 3.3% |
| 2–4 units | 5.5% |
| 5–19 units | 25.0% |
| 20+ units | 18.8% |
| Mobile / other | 1.6% |
Businesses in 77031
310 business establishments with 4,294 employees (ZIP Codes Business Patterns 2023).
- Retail Trade: 65
- Health Care and Social Assistance: 33
- Accommodation and Food Services: 31
- Construction: 27
- Professional, Scientific, and Technical Services: 27
- Wholesale Trade: 26
- Other Services (except Public Administration): 25
- Real Estate and Rental and Leasing: 19
EDDM carrier routes
77031 has 8 USPS carrier routes with 6,241 residential and 450 business mailboxes. Open the EDDM route map.
Carrier routes in 77031
77031 has 8 USPS carrier routes (8 city (C)) with 6,241 residential and 450 business mailboxes. Routes range from 406 homes (C006) to 1,733 homes (C007); the median route has 573 homes. The Census counted 5,672 households in 77031 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 0 |
| 250–499 | 2 |
| 500–749 | 3 |
| 750–999 | 1 |
| 1,000–1,499 | 1 |
| 1,500+ | 1 |
Best routes in 77031 for…
Highest income
For bigger-ticket offers: remodeling, pools, financial planning, private schools.
- Route C009 — Est. median household income $99,367, 602 homes
- Route C012 — Est. median household income $88,149, 480 homes
- Route C006 — Est. median household income $81,538, 406 homes
- Route C005 — Est. median household income $80,247, 544 homes
- Route C003 — Est. median household income $56,279, 502 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 C007 — Est. families with children under 18 48.5%, 1,733 homes
- Route C010 — Est. families with children under 18 39.5%, 1,091 homes
- Route C012 — Est. families with children under 18 34.1%, 480 homes
- Route C006 — Est. families with children under 18 33.0%, 406 homes
- Route C009 — Est. families with children under 18 32.8%, 602 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 C009 — Est. owner-occupied homes 87.9%, 602 homes
- Route C005 — Est. owner-occupied homes 79.7%, 544 homes
- Route C006 — Est. owner-occupied homes 78.5%, 406 homes
- Route C012 — Est. owner-occupied homes 75.1%, 480 homes
- Route C003 — Est. owner-occupied homes 73.4%, 502 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 C015 — Est. residents who moved in the past year 42.2%, 883 homes
- Route C007 — Est. residents who moved in the past year 19.2%, 1,733 homes
- Route C003 — Est. residents who moved in the past year 12.1%, 502 homes
- Route C005 — Est. residents who moved in the past year 8.2%, 544 homes
- Route C012 — Est. residents who moved in the past year 7.6%, 480 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 C005 — Est. homes built 2010 or later 9.7%, 544 homes
- Route C015 — Est. homes built 2010 or later 4.2%, 883 homes
- Route C010 — Est. homes built 2010 or later 2.1%, 1,091 homes
- Route C003 — Est. homes built 2010 or later 1.2%, 502 homes
- Route C009 — Est. homes built 2010 or later 0.6%, 602 homes
Select these 5 routes on the route map
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route C015 — USPS business mailboxes 244, 883 homes
- Route C003 — USPS business mailboxes 90, 502 homes
- Route C009 — USPS business mailboxes 56, 602 homes
- Route C007 — USPS business mailboxes 34, 1,733 homes
- Route C005 — USPS business mailboxes 16, 544 homes
Select these 5 routes on the route map
Every carrier route in 77031
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| C003 | City | 502 | 90 | $56,279 | 73.4% | 19.9% | 12.1% |
| C005 | City | 544 | 16 | $80,247 | 79.7% | 25.0% | 8.2% |
| C006 | City | 406 | 0 | $81,538 | 78.5% | 33.0% | 4.9% |
| C007 | City | 1,733 | 34 | $33,044 | 15.8% | 48.5% | 19.2% |
| C009 | City | 602 | 56 | $99,367 | 87.9% | 32.8% | 2.0% |
| C010 | City | 1,091 | 10 | $53,205 | 49.3% | 39.5% | 7.0% |
| C012 | City | 480 | 0 | $88,149 | 75.1% | 34.1% | 7.6% |
| C015 | City | 883 | 244 | $28,222 | 10.2% | 24.7% | 42.2% |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 77031 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
- 77071 — Houston city, TX (1.6 mi)
- 77477 — Stafford city, TX (2.3 mi)
- 77099 — Houston city, TX (2.7 mi)
- 77074 — Houston city, TX (3.1 mi)
- 77036 — Houston city, TX (3.3 mi)
- 77489 — Missouri City city, TX (4 mi)
- 77072 — Houston city, TX (4.1 mi)
- 77085 — Houston city, TX (4.3 mi)
Areas that include 77031
- Houston, TX ZIP codes — 111 ZIP codes
- Harris County ZIP codes — 136 ZIP codes
- Houston ZIP code map — 238 ZIP codes
- Texas ZIP code data
Where it ranks
Mail every home in 77031
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.
Houston EDDM mailing
EDDM guides
ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 77031, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 77031 in?
- 77031 is a Houston, TX mailing address. By land area, 89% lies inside Houston; the rest is outside any Census-defined city or community.
- What county is 77031 in?
- 77031 is in Harris County.
- What is the population of 77031?
- About 15,179 people (±1,384), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 15,678.
- What is the median household income in 77031?
- $47,162 (±$6,362), 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 77031?
- 8 USPS carrier routes with 6,241 residential and 450 business mailboxes (6,690 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 77031?
- The closest, measured center to center: 77071 (1.6 mi, Houston), 77477 (2.3 mi, Stafford), 77099 (2.7 mi, Houston), 77074 (3.1 mi, Houston), 77036 (3.3 mi, Houston) and 77489 (4 mi, Missouri City).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.