77571 ZIP Code, La Porte, TX

77571 is a ZIP code in La Porte, Texas in Harris County. It covers 37 square miles of land, centered about 19 miles east of downtown Houston. The closest ZIP codes are 77536, 77507 and 77520. 38,543 people live here in 14,028 households. At about 1,040 people per square mile it has suburban density, and most homes are owner-occupied (72%). Median household income is $81,850, close to the Texas median of $78,476.

Quick facts

Key figures

MeasureValue
Residents38,543
Households14,028
Median household income$81,850
Income per person$44,981
Median age37.3
Homeowners72.1%
Median home value$237,500
Median rent$1,375
Bachelor's degree or higher18.1%
Average commute (minutes)24.5
Households with kids under 1836.4%
Moved in the past year11.1%
Below the poverty line11.9%
Broadband internet91.8%
Speak a non-English language at home24.1%

Household income

% of householdsValue
<$10K5.0%
$10–15K3.1%
$15–25K5.6%
$25–35K6.7%
$35–50K13.5%
$50–75K10.1%
$75–100K15.3%
$100–150K18.5%
$150–200K12.3%
$200K+10.0%

Age

% of all residentsValue
<1014.3%
10–1913.2%
20–246.3%
25–3413.2%
35–4412.6%
45–5411.6%
55–6413.7%
65–749.9%
75+5.1%

Tenure

% of housing unitsValue
Owned, with mortgage36.8%
Owned outright33.2%
Rented26.7%
Vacant3.3%

Type of building

% of housing unitsValue
Detached house74.9%
Townhome3.4%
2–4 units4.6%
5–19 units5.3%
20+ units7.7%
Mobile / other4.3%

Businesses in 77571

837 business establishments with 31,722 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

77571 has 25 USPS carrier routes with 15,667 residential and 1,114 business mailboxes. Open the EDDM route map.

Carrier routes in 77571

77571 has 25 USPS carrier routes (22 city (C), 3 rural (R)) with 15,667 residential and 1,114 business mailboxes. Routes range from 275 homes (R001) to 992 homes (C022); the median route has 635 homes. The Census counted 14,028 households in 77571 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2490
250–4998
500–7499
750–9998
1,000–1,4990
1,500+0

Best routes in 77571 for…

Highest income

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

  1. Route C006 — Est. median household income $138,704, 813 homes
  2. Route C013 — Est. median household income $129,091, 594 homes
  3. Route C022 — Est. median household income $125,608, 992 homes
  4. Route C018 — Est. median household income $124,157, 512 homes
  5. Route C015 — Est. median household income $112,626, 696 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 R001 — Est. families with children under 18 41.8%, 275 homes
  2. Route C008 — Est. families with children under 18 41.2%, 847 homes
  3. Route C016 — Est. families with children under 18 41.1%, 779 homes
  4. Route C018 — Est. families with children under 18 40.3%, 512 homes
  5. Route C001 — Est. families with children under 18 39.5%, 394 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 C018 — Est. owner-occupied homes 97.1%, 512 homes
  2. Route C022 — Est. owner-occupied homes 94.8%, 992 homes
  3. Route R002 — Est. owner-occupied homes 89.9%, 714 homes
  4. Route C010 — Est. owner-occupied homes 88.5%, 794 homes
  5. Route C025 — Est. owner-occupied homes 88.0%, 482 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.

  1. Route R001 — Est. residents who moved in the past year 23.8%, 275 homes
  2. Route C012 — Est. residents who moved in the past year 21.1%, 635 homes
  3. Route C009 — Est. residents who moved in the past year 21.0%, 276 homes
  4. Route C023 — Est. residents who moved in the past year 20.9%, 588 homes
  5. Route C024 — Est. residents who moved in the past year 18.8%, 496 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.

  1. Route C001 — Est. homes built 2010 or later 31.5%, 394 homes
  2. Route C009 — Est. homes built 2010 or later 28.4%, 276 homes
  3. Route C013 — Est. homes built 2010 or later 25.9%, 594 homes
  4. Route C008 — Est. homes built 2010 or later 21.4%, 847 homes
  5. Route C016 — Est. homes built 2010 or later 21.3%, 779 homes

Select these 5 routes on the route map

Most businesses

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

  1. Route C009 — USPS business mailboxes 227, 276 homes
  2. Route R001 — USPS business mailboxes 181, 275 homes
  3. Route C001 — USPS business mailboxes 156, 394 homes
  4. Route C017 — USPS business mailboxes 105, 471 homes
  5. Route C004 — USPS business mailboxes 74, 523 homes

Select these 5 routes on the route map

Every carrier route in 77571

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C001City394156$71,57564.0%39.5%11.4%
C003City63731$62,91961.0%22.3%9.1%
C004City52374$73,04464.0%37.5%16.2%
C005City7964$69,94570.6%29.7%12.6%
C006City81311$138,70479.3%37.0%7.2%
C007City7590$100,74787.3%35.9%7.8%
C008City84711$42,70347.3%41.2%15.2%
C009City276227$76,22951.1%24.5%21.0%
C010City79412$89,42988.5%28.9%4.8%
C011City72311$103,13455.3%32.5%15.3%
C012City63514$71,69855.0%36.3%21.1%
C013City59453$129,09186.5%27.2%12.8%
C014City4681$108,69485.1%36.2%12.4%
C015City6960$112,62685.7%33.7%13.1%
C016City77960$42,32055.0%41.1%12.3%
C017City471105$102,76285.3%37.9%6.9%
C018City5120$124,15797.1%40.3%1.6%
C021City9657$75,15577.4%37.2%10.5%
C022City99246$125,60894.8%36.7%7.2%
C023City58840$80,24055.7%35.6%20.9%
C024City4969$71,73762.3%32.7%18.8%
C025City4820$89,18588.0%34.7%4.2%
R001Rural275181$103,14386.6%41.8%23.8%
R002Rural71424$105,28189.9%36.9%7.3%
R003Rural43837$97,04286.5%37.7%14.9%

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 77571 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

Areas that include 77571

Mail every home in 77571

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) 77571, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 77571 in?
77571 is a La Porte, TX mailing address. By land area, 50% lies inside La Porte, 7% lies inside Houston, 4% lies inside Morgan's Point and 4% lies inside Deer Park; the rest is outside any Census-defined city or community.
What county is 77571 in?
77571 is in Harris County.
What is the population of 77571?
About 38,543 people (±318), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 37,018.
What is the median household income in 77571?
$81,850 (±$5,427), 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 77571?
25 USPS carrier routes with 15,667 residential and 1,114 business mailboxes (16,780 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 77571?
The closest, measured center to center: 77536 (3.6 mi, Deer Park), 77507 (4.4 mi, Pasadena), 77520 (4.8 mi, Baytown), 77505 (5.8 mi, Pasadena), 77503 (6 mi, Pasadena) and 77059 (6.4 mi, Houston).

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