77659 ZIP Code, Sour Lake, TX
77659 is a ZIP code in Sour Lake, Texas in Hardin County. It covers 118 square miles of land. The closest ZIP codes are 77519, 77613 and 77533. 5,650 people live here in 1,971 households. It is rural, with fewer than 100 people per square mile, and most homes are owner-occupied (87%). Median household income is $110,590, above the Texas median of $78,476; 49% of households have children under 18.
Quick facts
- Mailing city: Sour Lake, TX
- County: Hardin County
- Land area: 118 sq mi
- Population: 5,650
- Median household income: $110,590
- Carrier routes: 4 (2,147 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 5,650 |
| Households | 1,971 |
| Median household income | $110,590 |
| Income per person | $39,492 |
| Median age | 37.2 |
| Homeowners | 87.4% |
| Median home value | $241,100 |
| Median rent | $1,299 |
| Bachelor's degree or higher | 30.9% |
| Average commute (minutes) | 31.1 |
| Households with kids under 18 | 48.6% |
| Moved in the past year | 4.6% |
| Below the poverty line | 5.7% |
| Broadband internet | 94.0% |
| Speak a non-English language at home | 5.6% |
Household income
| % of households | Value |
|---|---|
| <$10K | 3.8% |
| $10–15K | 0.2% |
| $15–25K | 7.3% |
| $25–35K | 1.8% |
| $35–50K | 8.4% |
| $50–75K | 10.2% |
| $75–100K | 15.4% |
| $100–150K | 23.1% |
| $150–200K | 18.4% |
| $200K+ | 11.5% |
Age
| % of all residents | Value |
|---|---|
| <10 | 19.7% |
| 10–19 | 14.5% |
| 20–24 | 4.3% |
| 25–34 | 8.4% |
| 35–44 | 19.8% |
| 45–54 | 10.1% |
| 55–64 | 11.3% |
| 65–74 | 8.0% |
| 75+ | 3.9% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 30.3% |
| Owned outright | 45.6% |
| Rented | 11.0% |
| Vacant | 13.2% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 80.8% |
| Townhome | 0.8% |
| 2–4 units | 0.5% |
| 5–19 units | 2.1% |
| 20+ units | 0.0% |
| Mobile / other | 15.6% |
Businesses in 77659
88 business establishments with 872 employees (ZIP Codes Business Patterns 2023).
- Retail Trade: 16
- Construction: 12
- Other Services (except Public Administration): 9
- Professional, Scientific, and Technical Services: 8
- Health Care and Social Assistance: 7
- Transportation and Warehousing: 6
- Administrative and Support and Waste Management and Remediation Services: 5
- Accommodation and Food Services: 5
EDDM carrier routes
77659 has 4 USPS carrier routes with 2,147 residential and 56 business mailboxes. Open the EDDM route map.
Carrier routes in 77659
77659 has 4 USPS carrier routes (4 rural (R)) with 2,147 residential and 56 business mailboxes. Routes range from 373 homes (R010) to 625 homes (R001); the median route has 575 homes. The Census counted 1,971 households in 77659 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 0 |
| 250–499 | 1 |
| 500–749 | 3 |
| 750–999 | 0 |
| 1,000–1,499 | 0 |
| 1,500+ | 0 |
Best routes in 77659 for…
Highest income
For bigger-ticket offers: remodeling, pools, financial planning, private schools.
- Route R002 — Est. median household income $122,228, 560 homes
- Route R010 — Est. median household income $95,207, 373 homes
- Route R009 — Est. median household income $93,260, 589 homes
- Route R001 — Est. median household income $82,182, 625 homes
Select these 4 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 R002 — Est. families with children under 18 58.5%, 560 homes
- Route R009 — Est. families with children under 18 39.7%, 589 homes
- Route R010 — Est. families with children under 18 39.1%, 373 homes
- Route R001 — Est. families with children under 18 37.2%, 625 homes
Select these 4 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 R002 — Est. owner-occupied homes 97.4%, 560 homes
- Route R001 — Est. owner-occupied homes 87.6%, 625 homes
- Route R010 — Est. owner-occupied homes 83.7%, 373 homes
- Route R009 — Est. owner-occupied homes 81.8%, 589 homes
Select these 4 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 R009 — Est. residents who moved in the past year 6.9%, 589 homes
- Route R001 — Est. residents who moved in the past year 6.8%, 625 homes
- Route R010 — Est. residents who moved in the past year 6.6%, 373 homes
- Route R002 — Est. residents who moved in the past year 2.6%, 560 homes
Select these 4 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 R001 — Est. homes built 2010 or later 24.0%, 625 homes
- Route R009 — Est. homes built 2010 or later 21.6%, 589 homes
- Route R010 — Est. homes built 2010 or later 21.6%, 373 homes
- Route R002 — Est. homes built 2010 or later 8.3%, 560 homes
Select these 4 routes on the route map
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route R010 — USPS business mailboxes 31, 373 homes
- Route R002 — USPS business mailboxes 12, 560 homes
- Route R001 — USPS business mailboxes 8, 625 homes
- Route R009 — USPS business mailboxes 5, 589 homes
Select these 4 routes on the route map
Every carrier route in 77659
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| R001 | Rural | 625 | 8 | $82,182 | 87.6% | 37.2% | 6.8% |
| R002 | Rural | 560 | 12 | $122,228 | 97.4% | 58.5% | 2.6% |
| R009 | Rural | 589 | 5 | $93,260 | 81.8% | 39.7% | 6.9% |
| R010 | Rural | 373 | 31 | $95,207 | 83.7% | 39.1% | 6.6% |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 77659 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
- 77519 (9.1 mi)
- 77613 — China city, TX (10.9 mi)
- 77533 — Daisetta city, TX (11.6 mi)
- 77713 — Beaumont city, TX (12.5 mi)
- 77585 (12.6 mi)
- 77629 — Nome city, TX (13.4 mi)
- 77625 — Kountze city, TX (13.8 mi)
- 77564 — Hull CDP, TX (14 mi)
Areas that include 77659
- Sour Lake, TX ZIP codes — 1 ZIP code
- Pinewood Estates, TX ZIP codes — 1 ZIP code
- Hardin County ZIP codes — 10 ZIP codes
- Texas ZIP code data
Where it ranks
- No. 1 of 5: highest median household income in Hardin County
- No. 2 of 6: highest median home value in Hardin County
- No. 2 of 6: highest share of owner-occupied homes in Hardin County
- No. 2 of 6: highest share of households with children in Hardin County
- No. 5 of 6: highest share of residents who moved in during the past year in Hardin County
- No. 2 of 6: lowest median age in Hardin County
- No. 5 of 6: highest median age in Hardin County
- No. 2 of 5: fastest population growth in Hardin County
Mail every home in 77659
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) 77659, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 77659 in?
- 77659 is a Sour Lake, TX mailing address. By land area, 10% lies inside Pinewood Estates and 2% lies inside Sour Lake; the rest is outside any Census-defined city or community.
- What county is 77659 in?
- 77659 is in Hardin County.
- What is the population of 77659?
- About 5,650 people (±1,010), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 4,964.
- What is the median household income in 77659?
- $110,590 (±$21,301), 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 77659?
- 4 USPS carrier routes with 2,147 residential and 56 business mailboxes (2,204 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 77659?
- The closest, measured center to center: 77519 (9.1 mi), 77613 (10.9 mi, China), 77533 (11.6 mi, Daisetta), 77713 (12.5 mi, Beaumont), 77585 (12.6 mi) and 77629 (13.4 mi, Nome).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.