77320 ZIP Code, Huntsville, TX
77320 is a ZIP code in Huntsville, Texas — mostly in Walker County (94% of its land), with smaller parts in San Jacinto County. It covers 344 square miles of land. The closest ZIP codes are 77342, 77341 and 77367. 38,152 people live here in 10,586 households. With about 111 people per square mile it is lightly settled, and owners and renters are mixed (66% own). Median household income is $55,663, below the Texas median of $78,476; 21% of residents moved in during the past year.
Quick facts
- Mailing city: Huntsville, TX
- County: Walker County
- Land area: 344 sq mi
- Population: 38,152
- Median household income: $55,663
- Carrier routes: 20 (12,010 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 38,152 |
| Households | 10,586 |
| Median household income | $55,663 |
| Income per person | $22,868 |
| Median age | 39.9 |
| Homeowners | 65.9% |
| Median home value | $203,100 |
| Median rent | $998 |
| Bachelor's degree or higher | 15.5% |
| Average commute (minutes) | 25.8 |
| Households with kids under 18 | 29.6% |
| Moved in the past year | 21.2% |
| Below the poverty line | 15.4% |
| Broadband internet | 88.8% |
| Speak a non-English language at home | 19.8% |
Household income
| % of households | Value |
|---|---|
| <$10K | 6.8% |
| $10–15K | 4.2% |
| $15–25K | 8.7% |
| $25–35K | 11.2% |
| $35–50K | 15.1% |
| $50–75K | 18.8% |
| $75–100K | 13.5% |
| $100–150K | 11.0% |
| $150–200K | 7.5% |
| $200K+ | 3.2% |
Age
| % of all residents | Value |
|---|---|
| <10 | 8.1% |
| 10–19 | 8.9% |
| 20–24 | 7.5% |
| 25–34 | 17.0% |
| 35–44 | 16.7% |
| 45–54 | 14.3% |
| 55–64 | 14.1% |
| 65–74 | 8.7% |
| 75+ | 4.7% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 29.4% |
| Owned outright | 25.2% |
| Rented | 28.0% |
| Vacant | 17.5% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 53.8% |
| Townhome | 3.3% |
| 2–4 units | 4.4% |
| 5–19 units | 7.2% |
| 20+ units | 6.4% |
| Mobile / other | 24.9% |
Businesses in 77320
299 business establishments with 2,181 employees (ZIP Codes Business Patterns 2023).
- Construction: 46
- Retail Trade: 39
- Other Services (except Public Administration): 31
- Professional, Scientific, and Technical Services: 30
- Transportation and Warehousing: 21
- Real Estate and Rental and Leasing: 18
- Health Care and Social Assistance: 18
- Finance and Insurance: 17
EDDM carrier routes
77320 has 20 USPS carrier routes with 12,010 residential and 397 business mailboxes. Open the EDDM route map.
Carrier routes in 77320
77320 has 20 USPS carrier routes (4 city (C), 16 rural (R)) with 12,010 residential and 397 business mailboxes. Routes range from 160 homes (C012) to 1,003 homes (C010); the median route has 618 homes. The Census counted 10,586 households in 77320 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 1 |
| 250–499 | 3 |
| 500–749 | 12 |
| 750–999 | 3 |
| 1,000–1,499 | 1 |
| 1,500+ | 0 |
Best routes in 77320 for…
Highest income
For bigger-ticket offers: remodeling, pools, financial planning, private schools.
- Route R010 — Est. median household income $91,871, 565 homes
- Route R022 — Est. median household income $85,792, 513 homes
- Route R013 — Est. median household income $76,941, 484 homes
- Route R026 — Est. median household income $73,080, 287 homes
- Route R012 — Est. median household income $71,805, 622 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 C001 — Est. families with children under 18 42.9%, 830 homes
- Route R001 — Est. families with children under 18 42.9%, 502 homes
- Route R024 — Est. families with children under 18 39.7%, 833 homes
- Route R022 — Est. families with children under 18 38.3%, 513 homes
- Route R015 — Est. families with children under 18 34.1%, 639 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 R010 — Est. owner-occupied homes 92.9%, 565 homes
- Route R026 — Est. owner-occupied homes 92.7%, 287 homes
- Route R022 — Est. owner-occupied homes 92.2%, 513 homes
- Route R011 — Est. owner-occupied homes 88.9%, 604 homes
- Route R013 — Est. owner-occupied homes 88.8%, 484 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 R012 — Est. residents who moved in the past year 1.5%, 622 homes
- Route R003 — Est. residents who moved in the past year 0.2%, 613 homes
- Route R023 — Est. residents who moved in the past year 0.0%, 716 homes
- Route R019 — Est. residents who moved in the past year 0.0%, 533 homes
- Route R020 — Est. residents who moved in the past year 0.0%, 327 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 R010 — Est. homes built 2010 or later 43.4%, 565 homes
- Route R026 — Est. homes built 2010 or later 40.4%, 287 homes
- Route R013 — Est. homes built 2010 or later 36.5%, 484 homes
- Route R019 — Est. homes built 2010 or later 33.3%, 533 homes
- Route R018 — Est. homes built 2010 or later 30.6%, 654 homes
Select these 5 routes on the route map
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route C005 — USPS business mailboxes 73, 776 homes
- Route R019 — USPS business mailboxes 61, 533 homes
- Route C001 — USPS business mailboxes 51, 830 homes
- Route R018 — USPS business mailboxes 37, 654 homes
- Route R013 — USPS business mailboxes 37, 484 homes
Select these 5 routes on the route map
Every carrier route in 77320
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| C001 | City | 830 | 51 | $32,220 | 32.0% | 42.9% | — |
| C005 | City | 776 | 73 | $39,789 | 42.5% | 12.2% | — |
| C010 | City | 1,003 | 21 | $41,111 | 41.5% | 11.9% | — |
| C012 | City | 160 | 17 | $24,935 | 42.8% | 16.7% | — |
| R001 | Rural | 502 | 4 | $68,129 | 76.3% | 42.9% | — |
| R003 | Rural | 613 | 7 | $48,842 | 82.7% | 25.5% | 0.2% |
| R006 | Rural | 641 | 4 | $68,298 | 81.4% | 29.7% | — |
| R010 | Rural | 565 | 0 | $91,871 | 92.9% | 28.9% | — |
| R011 | Rural | 604 | 2 | $61,307 | 88.9% | 32.4% | — |
| R012 | Rural | 622 | 12 | $71,805 | 85.7% | 22.0% | 1.5% |
| R013 | Rural | 484 | 37 | $76,941 | 88.8% | 32.2% | — |
| R015 | Rural | 639 | 1 | $60,306 | 85.9% | 34.1% | — |
| R016 | Rural | 708 | 30 | $62,162 | 74.9% | 33.6% | — |
| R018 | Rural | 654 | 37 | $63,698 | 71.4% | 31.2% | — |
| R019 | Rural | 533 | 61 | $66,689 | 79.4% | 31.6% | 0.0% |
| R020 | Rural | 327 | 20 | $65,305 | 84.9% | 29.3% | 0.0% |
| R022 | Rural | 513 | 8 | $85,792 | 92.2% | 38.3% | — |
| R023 | Rural | 716 | 1 | $64,794 | 79.5% | 26.0% | 0.0% |
| R024 | Rural | 833 | 7 | $68,143 | 75.3% | 39.7% | — |
| R026 | Rural | 287 | 4 | $73,080 | 92.7% | 29.3% | — |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 77320 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
- 77342 — Huntsville city, TX (4.8 mi)
- 77341 — Huntsville city, TX (7.6 mi)
- 77367 — Riverside city, TX (10.3 mi)
- 77340 — Huntsville city, TX (10.6 mi)
- 77334 (11.1 mi)
- 77359 — Oakhurst CDP, TX (15.5 mi)
- 75852 — Midway city, TX (15.7 mi)
- 75862 — Trinity city, TX (17.5 mi)
Areas that include 77320
- Huntsville, TX ZIP codes — 4 ZIP codes
- Riverside, TX ZIP codes — 2 ZIP codes
- Walker County ZIP codes — 11 ZIP codes
- Texas ZIP code data
Where it ranks
- No. 5 of 7: highest median household income in Walker County
- No. 5 of 7: highest median home value in Walker County
- No. 5 of 7: highest share of households with children in Walker County
- No. 3 of 7: highest share of residents who moved in during the past year in Walker County
- No. 3 of 7: lowest median age in Walker County
- No. 5 of 7: highest median age in Walker County
- No. 4 of 7: fastest population growth in Walker County
Mail every home in 77320
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.
EDDM guides
ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 77320, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 77320 in?
- 77320 is a Huntsville, TX mailing address. By land area, 5% lies inside Huntsville; the rest is outside any Census-defined city or community.
- What county is 77320 in?
- 77320 is mostly in Walker County (94% of its land), with smaller parts in San Jacinto County.
- What is the population of 77320?
- About 38,152 people (±1,809), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 37,325.
- What is the median household income in 77320?
- $55,663 (±$4,035), 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 77320?
- 20 USPS carrier routes with 12,010 residential and 397 business mailboxes (12,407 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 77320?
- The closest, measured center to center: 77342 (4.8 mi, Huntsville), 77341 (7.6 mi, Huntsville), 77367 (10.3 mi, Riverside), 77340 (10.6 mi, Huntsville), 77334 (11.1 mi) and 77359 (15.5 mi, Oakhurst).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.