What city is 77503 in?

77503 is a Pasadena, TX mailing address. By land area, 97% lies inside Pasadena; the rest is outside any Census-defined city or community.

What is the population of 77503?

About 23,866 people (±1,545), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 24,956.

What is the median household income in 77503?

$66,797 (±$8,173), 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 77503?

14 USPS carrier routes with 8,561 residential and 670 business mailboxes (9,236 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 77503?

The closest, measured center to center: 77536 (2.4 mi, Deer Park), 77502 (2.7 mi, Pasadena), 77506 (2.8 mi, Pasadena), 77505 (3.1 mi, Pasadena), 77504 (3.5 mi, Pasadena) and 77587 (4.7 mi, South Houston).

77503 ZIP Code, Pasadena, TX

77503 is a ZIP code in Pasadena, Texas in Harris County. It covers 6.3 square miles of land, centered about 14 miles east of downtown Houston. The closest ZIP codes are 77536, 77502 and 77506. 23,866 people live here in 7,949 households. At about 3,764 people per square mile it has suburban density, and owners and renters are mixed (53% own). Median household income is $66,797, below the Texas median of $78,476.

Quick facts

Mailing city: Pasadena, TX
County: Harris County
Metro area: Houston
Land area: 6.3 sq mi
Population: 23,866
Median household income: $66,797
Carrier routes: 14 (8,561 homes)

Key figures

Measure	Value
Residents	23,866
Households	7,949
Median household income	$66,797
Income per person	$27,193
Median age	33.1
Homeowners	53.2%
Median home value	$182,500
Median rent	$1,200
Bachelor's degree or higher	10.5%
Average commute (minutes)	26.7
Households with kids under 18	39.6%
Moved in the past year	11.9%
Below the poverty line	14.4%
Broadband internet	94.5%
Speak a non-English language at home	49.3%

Household income

% of households	Value
<$10K	3.8%
$10–15K	5.0%
$15–25K	8.8%
$25–35K	9.5%
$35–50K	10.0%
$50–75K	19.0%
$75–100K	17.0%
$100–150K	16.8%
$150–200K	3.7%
$200K+	6.4%

Age

% of all residents	Value
<10	14.2%
10–19	17.4%
20–24	6.6%
25–34	14.0%
35–44	14.2%
45–54	10.3%
55–64	10.6%
65–74	8.2%
75+	4.5%

Tenure

% of housing units	Value
Owned, with mortgage	23.3%
Owned outright	26.2%
Rented	42.8%
Vacant	7.7%

Type of building

% of housing units	Value
Detached house	59.4%
Townhome	5.3%
2–4 units	3.4%
5–19 units	9.9%
20+ units	13.9%
Mobile / other	8.0%

Businesses in 77503

415 business establishments with 13,968 employees (ZIP Codes Business Patterns 2023).

Wholesale Trade: 68
Retail Trade: 60
Construction: 51
Transportation and Warehousing: 43
Other Services (except Public Administration): 41
Manufacturing: 32
Accommodation and Food Services: 31
Professional, Scientific, and Technical Services: 23

EDDM carrier routes

77503 has 14 USPS carrier routes with 8,561 residential and 670 business mailboxes. Open the EDDM route map.

Carrier routes in 77503

77503 has 14 USPS carrier routes (14 city (C)) with 8,561 residential and 670 business mailboxes. Routes range from 159 homes (C048) to 874 homes (C030); the median route has 651 homes. The Census counted 7,949 households in 77503 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	1
250–499	2
500–749	8
750–999	3
1,000–1,499	0
1,500+	0

Best routes in 77503 for…

Highest income

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

Route C031 — Est. median household income $94,231, 561 homes
Route C035 — Est. median household income $77,865, 651 homes
Route C033 — Est. median household income $77,441, 434 homes
Route C048 — Est. median household income $76,684, 159 homes
Route C038 — Est. median household income $75,903, 706 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.

Route C031 — Est. families with children under 18 55.7%, 561 homes
Route C033 — Est. families with children under 18 45.3%, 434 homes
Route C038 — Est. families with children under 18 44.2%, 706 homes
Route C039 — Est. families with children under 18 44.0%, 555 homes
Route C045 — Est. families with children under 18 43.9%, 317 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.

Route C048 — Est. owner-occupied homes 85.4%, 159 homes
Route C038 — Est. owner-occupied homes 72.8%, 706 homes
Route C037 — Est. owner-occupied homes 71.8%, 727 homes
Route C043 — Est. owner-occupied homes 71.5%, 823 homes
Route C033 — Est. owner-occupied homes 59.2%, 434 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.

Route C039 — Est. residents who moved in the past year 16.3%, 555 homes
Route C036 — Est. residents who moved in the past year 15.5%, 811 homes
Route C040 — Est. residents who moved in the past year 12.7%, 716 homes
Route C042 — Est. residents who moved in the past year 11.4%, 650 homes
Route C030 — Est. residents who moved in the past year 11.2%, 874 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.

Route C043 — Est. homes built 2010 or later 17.1%, 823 homes
Route C035 — Est. homes built 2010 or later 9.4%, 651 homes
Route C048 — Est. homes built 2010 or later 9.3%, 159 homes
Route C036 — Est. homes built 2010 or later 6.5%, 811 homes
Route C032 — Est. homes built 2010 or later 5.7%, 577 homes

Select these 5 routes on the route map

Most businesses

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

Route C040 — USPS business mailboxes 128, 716 homes
Route C045 — USPS business mailboxes 114, 317 homes
Route C030 — USPS business mailboxes 86, 874 homes
Route C031 — USPS business mailboxes 56, 561 homes
Route C042 — USPS business mailboxes 51, 650 homes

Select these 5 routes on the route map

Every carrier route in 77503

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
C030	City	874	86	$49,870	52.0%	38.4%	11.2%
C031	City	561	56	$94,231	54.6%	55.7%	6.6%
C032	City	577	33	$71,038	54.3%	34.7%	9.9%
C033	City	434	25	$77,441	59.2%	45.3%	7.8%
C035	City	651	46	$77,865	48.4%	28.4%	11.2%
C036	City	811	26	$66,486	55.3%	42.1%	15.5%
C037	City	727	20	$68,191	71.8%	41.4%	6.3%
C038	City	706	37	$75,903	72.8%	44.2%	8.6%
C039	City	555	0	$65,900	56.4%	44.0%	16.3%
C040	City	716	128	$64,623	44.0%	38.1%	12.7%
C042	City	650	51	$49,093	51.5%	32.3%	11.4%
C043	City	823	44	$54,789	71.5%	22.9%	8.8%
C045	City	317	114	$65,389	45.6%	43.9%	10.2%
C048	City	159	4	$76,684	85.4%	21.8%	6.5%

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 77503 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

77536 — Deer Park city, TX (2.4 mi)
77502 — Pasadena city, TX (2.7 mi)
77506 — Pasadena city, TX (2.8 mi)
77505 — Pasadena city, TX (3.1 mi)
77504 — Pasadena city, TX (3.5 mi)
77587 — South Houston city, TX (4.7 mi)
77015 — Houston city, TX (5.2 mi)
77017 — Houston city, TX (5.6 mi)

Areas that include 77503

Where it ranks

Mail every home in 77503

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) 77503, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 77503 in?: 77503 is a Pasadena, TX mailing address. By land area, 97% lies inside Pasadena; the rest is outside any Census-defined city or community.
What county is 77503 in?: 77503 is in Harris County.
What is the population of 77503?: About 23,866 people (±1,545), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 24,956.
What is the median household income in 77503?: $66,797 (±$8,173), 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 77503?: 14 USPS carrier routes with 8,561 residential and 670 business mailboxes (9,236 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 77503?: The closest, measured center to center: 77536 (2.4 mi, Deer Park), 77502 (2.7 mi, Pasadena), 77506 (2.8 mi, Pasadena), 77505 (3.1 mi, Pasadena), 77504 (3.5 mi, Pasadena) and 77587 (4.7 mi, South Houston).

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