77586 ZIP Code, Seabrook, TX

77586 is a ZIP code in Seabrook, Texas in Harris County. It covers 12 square miles of land, centered about 23 miles southeast of downtown Houston. The closest ZIP codes are 77565, 77507 and 77058. 23,807 people live here in 9,948 households. At about 2,042 people per square mile it has suburban density, and most homes are owner-occupied (74%). Median household income is $114,057, above the Texas median of $78,476.

Quick facts

Key figures

MeasureValue
Residents23,807
Households9,948
Median household income$114,057
Income per person$58,424
Median age43.6
Homeowners74.3%
Median home value$345,700
Median rent$1,445
Bachelor's degree or higher44.8%
Average commute (minutes)29.7
Households with kids under 1826.9%
Moved in the past year13.5%
Below the poverty line5.2%
Broadband internet96.1%
Speak a non-English language at home17.9%

Household income

% of householdsValue
<$10K3.5%
$10–15K1.1%
$15–25K2.5%
$25–35K4.3%
$35–50K9.3%
$50–75K16.2%
$75–100K9.5%
$100–150K17.3%
$150–200K14.6%
$200K+21.6%

Age

% of all residentsValue
<109.1%
10–1915.2%
20–245.8%
25–348.8%
35–4413.2%
45–5414.6%
55–6415.9%
65–7411.4%
75+5.9%

Tenure

% of housing unitsValue
Owned, with mortgage44.0%
Owned outright26.4%
Rented24.0%
Vacant5.7%

Type of building

% of housing unitsValue
Detached house67.4%
Townhome2.3%
2–4 units6.1%
5–19 units7.1%
20+ units16.9%
Mobile / other0.3%

Businesses in 77586

380 business establishments with 4,640 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

77586 has 15 USPS carrier routes with 10,862 residential and 384 business mailboxes. Open the EDDM route map.

Carrier routes in 77586

77586 has 15 USPS carrier routes (11 city (C), 4 rural (R)) with 10,862 residential and 384 business mailboxes. Routes range from 443 homes (C003) to 1,388 homes (C006); the median route has 669 homes. The Census counted 9,948 households in 77586 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2490
250–4992
500–7496
750–9996
1,000–1,4991
1,500+0

Best routes in 77586 for…

Highest income

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

  1. Route C003 — Est. median household income $170,225, 443 homes
  2. Route R004 — Est. median household income $158,140, 847 homes
  3. Route R003 — Est. median household income $154,028, 560 homes
  4. Route C010 — Est. median household income $152,045, 567 homes
  5. Route C011 — Est. median household income $135,102, 985 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 R003 — Est. families with children under 18 43.9%, 560 homes
  2. Route C004 — Est. families with children under 18 37.1%, 488 homes
  3. Route R001 — Est. families with children under 18 32.2%, 761 homes
  4. Route R002 — Est. families with children under 18 31.7%, 669 homes
  5. Route R004 — Est. families with children under 18 31.6%, 847 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 C003 — Est. owner-occupied homes 96.4%, 443 homes
  2. Route R003 — Est. owner-occupied homes 95.1%, 560 homes
  3. Route C013 — Est. owner-occupied homes 91.8%, 624 homes
  4. Route R001 — Est. owner-occupied homes 88.4%, 761 homes
  5. Route R002 — Est. owner-occupied homes 86.6%, 669 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 C015 — Est. residents who moved in the past year 20.1%, 953 homes
  2. Route C006 — Est. residents who moved in the past year 19.5%, 1,388 homes
  3. Route R004 — Est. residents who moved in the past year 15.9%, 847 homes
  4. Route R003 — Est. residents who moved in the past year 15.9%, 560 homes
  5. Route C004 — Est. residents who moved in the past year 13.6%, 488 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 R004 — Est. homes built 2010 or later 22.7%, 847 homes
  2. Route R002 — Est. homes built 2010 or later 18.7%, 669 homes
  3. Route R001 — Est. homes built 2010 or later 15.3%, 761 homes
  4. Route C006 — Est. homes built 2010 or later 12.9%, 1,388 homes
  5. Route C011 — Est. homes built 2010 or later 11.3%, 985 homes

Select these 5 routes on the route map

Most businesses

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

  1. Route C006 — USPS business mailboxes 82, 1,388 homes
  2. Route C014 — USPS business mailboxes 65, 759 homes
  3. Route C001 — USPS business mailboxes 56, 556 homes
  4. Route C015 — USPS business mailboxes 49, 953 homes
  5. Route R002 — USPS business mailboxes 47, 669 homes

Select these 5 routes on the route map

Every carrier route in 77586

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C001City55656$96,07577.2%13.8%11.5%
C003City4430$170,22596.4%29.6%5.9%
C004City4888$71,75364.7%37.1%13.6%
C005City5106$58,23674.7%14.7%5.0%
C006City1,38882$78,92356.4%23.0%19.5%
C007City75210$104,04272.5%28.9%12.7%
C010City56745$152,04578.9%20.5%10.5%
C011City9852$135,10271.3%26.7%8.7%
C013City6241$134,30291.8%28.8%12.8%
C014City75965$127,09979.0%30.1%9.3%
C015City95349$66,32651.0%29.1%20.1%
R001Rural7618$112,47188.4%32.2%9.2%
R002Rural66947$115,51686.6%31.7%11.2%
R003Rural5602$154,02895.1%43.9%15.9%
R004Rural8473$158,14081.7%31.6%15.9%

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 77586 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 77586

Where it ranks

Mail every home in 77586

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.

Pasadena EDDM mailing

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 77586, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 77586 in?
77586 is a Seabrook, TX mailing address. By land area, 46% lies inside Seabrook, 26% lies inside Pasadena, 10% lies inside Taylor Lake Village and 6% lies inside El Lago; the rest is outside any Census-defined city or community.
What county is 77586 in?
77586 is in Harris County.
What is the population of 77586?
About 23,807 people (±812), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 23,503.
What is the median household income in 77586?
$114,057 (±$15,010), 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 77586?
15 USPS carrier routes with 10,862 residential and 384 business mailboxes (11,247 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 77586?
The closest, measured center to center: 77565 (3 mi, Kemah), 77507 (3.3 mi, Pasadena), 77058 (3.9 mi, Houston), 77059 (5.3 mi, Houston), 77062 (5.8 mi, Houston) and 77573 (6.1 mi, League City).

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