76531 ZIP Code, Hamilton, TX

76531 is a ZIP code in Hamilton, Texas in Hamilton County. It covers 387 square miles of land. The closest ZIP codes are 76565, 76436 and 76452. 4,703 people live here in 1,632 households. It is rural, with fewer than 100 people per square mile, and most homes are owner-occupied (76%). Median household income is $49,100, well below the Texas median of $78,476.

Quick facts

• Mailing city: Hamilton, TX
• County: Hamilton County
• Land area: 387 sq mi
• Population: 4,703
• Median household income: $49,100
• Carrier routes: 7 (2,149 homes)

Key figures

Household income

Age

Tenure

Type of building

Businesses in 76531

155 business establishments with 1,254 employees (ZIP Codes Business Patterns 2023).

• Retail Trade: 32
• Other Services (except Public Administration): 22
• Construction: 21
• Professional, Scientific, and Technical Services: 14
• Accommodation and Food Services: 14
• Health Care and Social Assistance: 12
• Manufacturing: 8
• Wholesale Trade: 7

EDDM carrier routes

76531 has 7 USPS carrier routes with 2,149 residential and 170 business mailboxes. Open the EDDM route map.

Carrier routes in 76531

76531 has 7 USPS carrier routes (2 city (C), 3 rural (R), 2 highway contract (H)) with 2,149 residential and 170 business mailboxes. Routes range from 13 homes (H063) to 623 homes (C001); the median route has 372 homes. The Census counted 1,632 households in 76531 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Best routes in 76531 for…

Highest income

For bigger-ticket offers: remodeling, pools, financial planning, private schools.

1. Route R002 — Est. median household income $68,096, 377 homes
2. Route R003 — Est. median household income $68,076, 372 homes
3. Route R001 — Est. median household income $53,492, 410 homes
4. Route C001 — Est. median household income $47,230, 623 homes
5. Route C002 — Est. median household income $43,356, 334 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.

1. Route C002 — Est. families with children under 18 23.0%, 334 homes
2. Route C001 — Est. families with children under 18 22.3%, 623 homes
3. Route R003 — Est. families with children under 18 19.8%, 372 homes
4. Route R002 — Est. families with children under 18 19.2%, 377 homes
5. Route R001 — Est. families with children under 18 16.2%, 410 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.

1. Route R001 — Est. owner-occupied homes 89.2%, 410 homes
2. Route R002 — Est. owner-occupied homes 84.0%, 377 homes
3. Route R003 — Est. owner-occupied homes 82.9%, 372 homes
4. Route C002 — Est. owner-occupied homes 75.3%, 334 homes
5. Route C001 — Est. owner-occupied homes 70.9%, 623 homes

Select these 5 routes on the route map

Often mailed by: Roofing direct mail, HVAC postcards

Newest homes

Newer subdivisions: landscaping, window treatments, fencing, security, home warranties.

1. Route R001 — Est. homes built 2010 or later 9.9%, 410 homes
2. Route R003 — Est. homes built 2010 or later 5.7%, 372 homes
3. Route R002 — Est. homes built 2010 or later 5.6%, 377 homes
4. Route C002 — Est. homes built 2010 or later 4.7%, 334 homes
5. Route C001 — Est. homes built 2010 or later 0.6%, 623 homes

Select these 5 routes on the route map

Most businesses

For B2B offers: office supplies, cleaning, IT, catering and commercial services.

1. Route C002 — USPS business mailboxes 68, 334 homes
2. Route C001 — USPS business mailboxes 39, 623 homes
3. Route R002 — USPS business mailboxes 24, 377 homes
4. Route R001 — USPS business mailboxes 19, 410 homes
5. Route R003 — USPS business mailboxes 19, 372 homes

Select these 5 routes on the route map

Every carrier route in 76531

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 76531 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

• 76565 (10 mi)
• 76436 — Carlton CDP, TX (12.7 mi)
• 76452 (13.4 mi)
• 76455 — Gustine town, TX (14.1 mi)
• 76525 — Evant town, TX (14.7 mi)
• 76538 (16.1 mi)
• 76566 (16.2 mi)
• 76880 (18.3 mi)

Areas that include 76531

• Hamilton, TX ZIP codes — 1 ZIP code
• Hamilton County ZIP codes — 8 ZIP codes
• Texas ZIP code data

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 76531, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 76531 in?

76531 is a Hamilton, TX mailing address. None of its land lies inside a Census-defined city or community.

What county is 76531 in?

76531 is in Hamilton County.

What is the population of 76531?

About 4,703 people (±290), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 4,695.

What is the median household income in 76531?

$49,100 (±$7,208), 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 76531?

7 USPS carrier routes with 2,149 residential and 170 business mailboxes (2,319 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 76531?

The closest, measured center to center: 76565 (10 mi), 76436 (12.7 mi, Carlton), 76452 (13.4 mi), 76455 (14.1 mi, Gustine), 76525 (14.7 mi, Evant) and 76538 (16.1 mi).

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.