77520 ZIP Code, Baytown, TX

77520 is a ZIP code in Baytown, Texas in Harris County. It covers 21 square miles of land, centered about 22 miles east of downtown Houston. The closest ZIP codes are 77571, 77521 and 77562. 36,355 people live here in 12,753 households. At about 1,727 people per square mile it has suburban density, and owners and renters are mixed (52% own). Median household income is $54,278, below the Texas median of $78,476.

Quick facts

Key figures

MeasureValue
Residents36,355
Households12,753
Median household income$54,278
Income per person$26,365
Median age37.7
Homeowners52.2%
Median home value$150,700
Median rent$1,226
Bachelor's degree or higher12.7%
Average commute (minutes)25.1
Households with kids under 1836.6%
Moved in the past year14.2%
Below the poverty line20.2%
Broadband internet90.2%
Speak a non-English language at home45.7%

Household income

% of householdsValue
<$10K8.8%
$10–15K5.6%
$15–25K7.8%
$25–35K7.9%
$35–50K13.6%
$50–75K19.9%
$75–100K12.2%
$100–150K13.5%
$150–200K5.8%
$200K+4.9%

Age

% of all residentsValue
<1012.5%
10–1915.5%
20–245.9%
25–3413.2%
35–4413.3%
45–5416.1%
55–6411.0%
65–747.7%
75+4.8%

Tenure

% of housing unitsValue
Owned, with mortgage20.6%
Owned outright25.8%
Rented41.8%
Vacant11.8%

Type of building

% of housing unitsValue
Detached house64.8%
Townhome2.8%
2–4 units6.6%
5–19 units12.7%
20+ units8.0%
Mobile / other5.0%

Businesses in 77520

596 business establishments with 13,229 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

77520 has 26 USPS carrier routes with 13,860 residential and 1,042 business mailboxes. Open the EDDM route map.

Carrier routes in 77520

77520 has 26 USPS carrier routes (25 city (C), 1 rural (R)) with 13,860 residential and 1,042 business mailboxes. Routes range from 11 homes (R112) to 830 homes (C010); the median route has 566 homes. The Census counted 12,753 households in 77520 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2492
250–4999
500–74912
750–9993
1,000–1,4990
1,500+0

Best routes in 77520 for…

Highest income

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

  1. Route C022 — Est. median household income $97,055, 497 homes
  2. Route C025 — Est. median household income $80,239, 748 homes
  3. Route C013 — Est. median household income $76,364, 630 homes
  4. Route C040 — Est. median household income $76,106, 557 homes
  5. Route C020 — Est. median household income $74,578, 441 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 C014 — Est. families with children under 18 49.6%, 593 homes
  2. Route C040 — Est. families with children under 18 48.5%, 557 homes
  3. Route C001 — Est. families with children under 18 48.0%, 480 homes
  4. Route C018 — Est. families with children under 18 45.4%, 575 homes
  5. Route C047 — Est. families with children under 18 45.1%, 145 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 C022 — Est. owner-occupied homes 82.0%, 497 homes
  2. Route C020 — Est. owner-occupied homes 70.0%, 441 homes
  3. Route C019 — Est. owner-occupied homes 69.2%, 331 homes
  4. Route C014 — Est. owner-occupied homes 65.5%, 593 homes
  5. Route C008 — Est. owner-occupied homes 65.4%, 597 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 C018 — Est. residents who moved in the past year 28.1%, 575 homes
  2. Route C011 — Est. residents who moved in the past year 22.7%, 485 homes
  3. Route C024 — Est. residents who moved in the past year 20.4%, 659 homes
  4. Route C043 — Est. residents who moved in the past year 19.4%, 344 homes
  5. Route C047 — Est. residents who moved in the past year 17.0%, 145 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 C030 — Est. homes built 2010 or later 11.3%, 787 homes
  2. Route C004 — Est. homes built 2010 or later 9.9%, 758 homes
  3. Route C022 — Est. homes built 2010 or later 9.1%, 497 homes
  4. Route C020 — Est. homes built 2010 or later 8.7%, 441 homes
  5. Route C016 — Est. homes built 2010 or later 6.2%, 624 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 141, 650 homes
  2. Route C036 — USPS business mailboxes 120, 436 homes
  3. Route C024 — USPS business mailboxes 115, 659 homes
  4. Route C015 — USPS business mailboxes 89, 429 homes
  5. Route C043 — USPS business mailboxes 82, 344 homes

Select these 5 routes on the route map

Every carrier route in 77520

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C001City48062$46,90364.5%48.0%16.7%
C003City6254$55,86750.5%37.0%14.0%
C004City75851$72,76162.7%28.2%7.1%
C006City650141$49,17340.7%34.5%5.3%
C008City59724$50,27165.4%34.9%15.1%
C009City6159$45,82853.6%34.0%15.9%
C010City83012$59,34552.1%34.7%14.4%
C011City48576$55,36734.4%38.4%22.7%
C013City6305$76,36450.6%38.2%9.3%
C014City5934$69,02065.5%49.6%5.0%
C015City42989$47,04160.0%36.3%14.5%
C016City62418$57,98463.0%27.9%13.5%
C017City48848$50,41160.3%26.3%13.2%
C018City57511$53,57053.5%45.4%28.1%
C019City33137$52,28869.2%38.7%10.2%
C020City44120$74,57870.0%32.7%7.4%
C022City4973$97,05582.0%41.7%2.4%
C024City659115$48,51247.7%32.8%20.4%
C025City74851$80,23946.8%33.0%8.5%
C026City52515$52,75249.7%25.7%13.2%
C030City7878$58,46254.2%29.8%12.2%
C036City436120$56,74857.3%39.3%11.3%
C040City55714$76,10660.5%48.5%4.8%
C043City34482$44,35361.1%40.5%19.4%
C047City1454$53,47147.6%45.1%17.0%
R112Rural1119$56,38677.3%31.3%10.1%

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 77520 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 77520

Mail every home in 77520

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.

Baytown EDDM mailing

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 77520, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 77520 in?
77520 is a Baytown, TX mailing address. By land area, 66% lies inside Baytown and 2% lies inside Houston; the rest is outside any Census-defined city or community.
What county is 77520 in?
77520 is in Harris County.
What is the population of 77520?
About 36,355 people (±1,649), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 38,587.
What is the median household income in 77520?
$54,278 (±$3,614), 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 77520?
26 USPS carrier routes with 13,860 residential and 1,042 business mailboxes (14,901 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 77520?
The closest, measured center to center: 77571 (4.8 mi, La Porte), 77521 (5.7 mi, Baytown), 77562 (7.2 mi, Highlands), 77536 (7.6 mi, Deer Park), 77530 (7.7 mi, Channelview) and 77523 (8.4 mi, Mont Belvieu).

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