77573 ZIP Code, League City, TX
77573 is a ZIP code in League City, Texas in Galveston County. It covers 30 square miles of land, centered about 25 miles southeast of downtown Houston. The closest ZIP codes are 77598, 77565 and 77058. 98,109 people live here in 35,988 households, which puts it among the most populous 1% of Texas ZIP codes. At about 3,288 people per square mile it has suburban density, and most homes are owner-occupied (76%). Median household income is $122,722, well above the Texas median of $78,476.
Quick facts
- Mailing city: League City, TX
- County: Galveston County
- Metro area: Houston
- Land area: 30 sq mi
- Population: 98,109
- Median household income: $122,722
- Carrier routes: 53 (37,717 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 98,109 |
| Households | 35,988 |
| Median household income | $122,722 |
| Income per person | $53,713 |
| Median age | 37.8 |
| Homeowners | 75.8% |
| Median home value | $367,500 |
| Median rent | $1,692 |
| Bachelor's degree or higher | 49.0% |
| Average commute (minutes) | 30.5 |
| Households with kids under 18 | 37.8% |
| Moved in the past year | 10.2% |
| Below the poverty line | 5.1% |
| Broadband internet | 96.3% |
| Speak a non-English language at home | 17.8% |
Household income
| % of households | Value |
|---|---|
| <$10K | 2.5% |
| $10–15K | 1.4% |
| $15–25K | 3.3% |
| $25–35K | 3.2% |
| $35–50K | 6.4% |
| $50–75K | 12.7% |
| $75–100K | 11.2% |
| $100–150K | 19.1% |
| $150–200K | 16.5% |
| $200K+ | 23.8% |
Age
| % of all residents | Value |
|---|---|
| <10 | 14.3% |
| 10–19 | 15.0% |
| 20–24 | 4.7% |
| 25–34 | 11.1% |
| 35–44 | 16.7% |
| 45–54 | 14.0% |
| 55–64 | 11.2% |
| 65–74 | 8.0% |
| 75+ | 5.2% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 49.7% |
| Owned outright | 22.9% |
| Rented | 23.0% |
| Vacant | 4.4% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 77.9% |
| Townhome | 1.8% |
| 2–4 units | 1.7% |
| 5–19 units | 6.8% |
| 20+ units | 10.4% |
| Mobile / other | 1.4% |
Businesses in 77573
1,700 business establishments with 22,062 employees (ZIP Codes Business Patterns 2023).
- Health Care and Social Assistance: 227
- Professional, Scientific, and Technical Services: 217
- Retail Trade: 212
- Accommodation and Food Services: 191
- Other Services (except Public Administration): 174
- Construction: 135
- Finance and Insurance: 124
- Real Estate and Rental and Leasing: 100
EDDM carrier routes
77573 has 53 USPS carrier routes with 37,717 residential and 1,562 business mailboxes. Open the EDDM route map.
Carrier routes in 77573
77573 has 53 USPS carrier routes (48 city (C), 5 rural (R)) with 37,717 residential and 1,562 business mailboxes. Routes range from 108 homes (C017) to 2,528 homes (C054); the median route has 648 homes. The Census counted 35,988 households in 77573 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 1 |
| 250–499 | 7 |
| 500–749 | 24 |
| 750–999 | 16 |
| 1,000–1,499 | 4 |
| 1,500+ | 1 |
Best routes in 77573 for…
Highest income
For bigger-ticket offers: remodeling, pools, financial planning, private schools.
- Route C045 — Est. median household income $200,000+, 761 homes
- Route C039 — Est. median household income $200,000+, 543 homes
- Route R006 — Est. median household income $200,000+, 516 homes
- Route R011 — Est. median household income $200,000+, 515 homes
- Route R001 — Est. median household income $200,000+, 507 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 R007 — Est. families with children under 18 70.0%, 576 homes
- Route C040 — Est. families with children under 18 68.7%, 708 homes
- Route R006 — Est. families with children under 18 67.3%, 516 homes
- Route C018 — Est. families with children under 18 59.7%, 643 homes
- Route C003 — Est. families with children under 18 54.1%, 761 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 C040 — Est. owner-occupied homes 100.0%, 708 homes
- Route R006 — Est. owner-occupied homes 100.0%, 516 homes
- Route R011 — Est. owner-occupied homes 100.0%, 515 homes
- Route C035 — Est. owner-occupied homes 100.0%, 495 homes
- Route C050 — Est. owner-occupied homes 99.5%, 843 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 C003 — Est. residents who moved in the past year 18.7%, 761 homes
- Route C033 — Est. residents who moved in the past year 18.3%, 804 homes
- Route R011 — Est. residents who moved in the past year 17.9%, 515 homes
- Route C013 — Est. residents who moved in the past year 16.1%, 669 homes
- Route R008 — Est. residents who moved in the past year 16.0%, 533 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 R006 — Est. homes built 2010 or later 84.5%, 516 homes
- Route R008 — Est. homes built 2010 or later 79.4%, 533 homes
- Route R007 — Est. homes built 2010 or later 75.1%, 576 homes
- Route C003 — Est. homes built 2010 or later 68.1%, 761 homes
- Route C044 — Est. homes built 2010 or later 55.9%, 817 homes
Select these 5 routes on the route map
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route C017 — USPS business mailboxes 288, 108 homes
- Route C002 — USPS business mailboxes 213, 451 homes
- Route C001 — USPS business mailboxes 133, 493 homes
- Route C011 — USPS business mailboxes 103, 522 homes
- Route C025 — USPS business mailboxes 93, 751 homes
Select these 5 routes on the route map
Every carrier route in 77573
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| C001 | City | 493 | 133 | $100,814 | 82.8% | 26.7% | 12.8% |
| C002 | City | 451 | 213 | $67,450 | 57.5% | 32.2% | 12.4% |
| C003 | City | 761 | 50 | $144,163 | 81.0% | 54.1% | 18.7% |
| C004 | City | 622 | 6 | $120,222 | 80.0% | 28.5% | 4.9% |
| C005 | City | 671 | 17 | $97,528 | 71.9% | 27.1% | 8.0% |
| C006 | City | 1,298 | 16 | $162,270 | 78.5% | 53.2% | 9.5% |
| C007 | City | 689 | 35 | $94,239 | 97.7% | 40.8% | 5.0% |
| C008 | City | 541 | 4 | $128,804 | 99.3% | 24.1% | 3.4% |
| C009 | City | 888 | 4 | $124,698 | 94.0% | 34.5% | 7.1% |
| C010 | City | 800 | 68 | $120,021 | 78.0% | 16.8% | 12.9% |
| C011 | City | 522 | 103 | $106,731 | 69.1% | 31.1% | 6.3% |
| C012 | City | 781 | 8 | $115,673 | 86.2% | 31.3% | 5.7% |
| C013 | City | 669 | 37 | $68,486 | 53.3% | 8.3% | 16.1% |
| C014 | City | 610 | 6 | $98,655 | 73.7% | 50.1% | 9.2% |
| C015 | City | 625 | 43 | $71,050 | 75.0% | 32.3% | 7.8% |
| C016 | City | 398 | 0 | $124,944 | 95.6% | 24.9% | 4.3% |
| C017 | City | 108 | 288 | $110,352 | 65.9% | 40.9% | 12.6% |
| C018 | City | 643 | 0 | $110,846 | 58.2% | 59.7% | 1.7% |
| C019 | City | 464 | 4 | $173,352 | 90.8% | 47.5% | 13.2% |
| C020 | City | 869 | 66 | $70,723 | 46.4% | 11.5% | 12.4% |
| C021 | City | 512 | 1 | $154,122 | 90.3% | 30.6% | 7.1% |
| C022 | City | 602 | 0 | $144,054 | 94.7% | 34.3% | 6.3% |
| C023 | City | 752 | 2 | $163,537 | 83.5% | 37.6% | 6.7% |
| C024 | City | 644 | 14 | $93,971 | 70.4% | 36.2% | 10.6% |
| C025 | City | 751 | 93 | $172,645 | 70.1% | 41.0% | 9.5% |
| C027 | City | 648 | 5 | $138,787 | 91.5% | 51.0% | 3.5% |
| C028 | City | 550 | 0 | $160,363 | 98.8% | 48.6% | 10.8% |
| C030 | City | 922 | 32 | $126,706 | 63.2% | 21.5% | 11.7% |
| C033 | City | 804 | 1 | $97,548 | 47.0% | 40.5% | 18.3% |
| C035 | City | 495 | 10 | $140,343 | 100.0% | 34.4% | 0.0% |
| C036 | City | 429 | 0 | $148,430 | 90.9% | 52.7% | 6.5% |
| C037 | City | 1,017 | 5 | $145,893 | 94.2% | 18.8% | 11.8% |
| C038 | City | 528 | 22 | $153,108 | 98.8% | 39.3% | 5.4% |
| C039 | City | 543 | 26 | $200,000+ | 96.4% | 52.3% | 6.2% |
| C040 | City | 708 | 0 | $147,780 | 100.0% | 68.7% | 13.5% |
| C041 | City | 798 | 12 | $96,843 | 74.9% | 37.5% | 7.6% |
| C043 | City | 696 | 3 | $182,987 | 98.1% | 37.6% | 1.3% |
| C044 | City | 817 | 2 | $114,008 | 74.6% | 46.0% | 11.1% |
| C045 | City | 761 | 0 | $200,000+ | 99.2% | 37.5% | 4.8% |
| C046 | City | 768 | 5 | $160,663 | 90.1% | 39.9% | 12.5% |
| C047 | City | 520 | 29 | $102,710 | 71.0% | 30.1% | 9.0% |
| C048 | City | 487 | 84 | $97,080 | 77.9% | 47.6% | 6.5% |
| C049 | City | 780 | 0 | $146,231 | 89.5% | 46.4% | 10.4% |
| C050 | City | 843 | 0 | $150,980 | 99.5% | 48.1% | 2.0% |
| C051 | City | 1,242 | 10 | $134,023 | 84.5% | 36.6% | 8.9% |
| C052 | City | 858 | 2 | $113,308 | 78.5% | 33.4% | 8.8% |
| C053 | City | 1,164 | 41 | $148,239 | 85.1% | 47.4% | 7.5% |
| C054 | City | 2,528 | 36 | $146,378 | 94.4% | 38.3% | 6.8% |
| R001 | Rural | 507 | 0 | $200,000+ | 98.8% | 44.7% | 15.6% |
| R006 | Rural | 516 | 1 | $200,000+ | 100.0% | 67.3% | 7.0% |
| R007 | Rural | 576 | 0 | $187,629 | 93.1% | 70.0% | 3.8% |
| R008 | Rural | 533 | 25 | $173,404 | 95.0% | 53.7% | 16.0% |
| R011 | Rural | 515 | 0 | $200,000+ | 100.0% | 41.0% | 17.9% |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 77573 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
- 77598 — Webster city, TX (3.8 mi)
- 77565 — Kemah city, TX (4 mi)
- 77058 — Houston city, TX (4.1 mi)
- 77539 — Texas City city, TX (5 mi)
- 77062 — Houston city, TX (5.7 mi)
- 77518 — Bacliff CDP, TX (6 mi)
- 77586 — Seabrook city, TX (6.1 mi)
- 77546 — Friendswood city, TX (6.4 mi)
Areas that include 77573
- League City, TX ZIP codes — 5 ZIP codes
- Galveston County ZIP codes — 19 ZIP codes
- Houston ZIP code map — 238 ZIP codes
- Texas ZIP code data
Where it ranks
- No. 2 of 16: highest median household income in Galveston County
- No. 4 of 16: highest median home value in Galveston County
- No. 5 of 16: highest share of owner-occupied homes in Galveston County
- No. 4 of 16: highest share of households with children in Galveston County
- No. 5 of 16: fastest population growth in Galveston County
- No. 1 of 5: highest median household income in League City, TX
- No. 2 of 5: highest median home value in League City, TX
- No. 1 of 5: highest share of owner-occupied homes in League City, TX
- No. 3 of 5: highest share of households with children in League City, TX
- No. 4 of 5: highest share of residents who moved in during the past year in League City, TX
- No. 4 of 5: lowest median age in League City, TX
- No. 2 of 5: highest median age in League City, TX
Mail every home in 77573
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.
League City EDDM mailing
EDDM guides
ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 77573, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 77573 in?
- 77573 is a League City, TX mailing address. By land area, 100% lies inside League City.
- What county is 77573 in?
- 77573 is in Galveston County.
- What is the population of 77573?
- About 98,109 people (±1,092), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 95,256.
- What is the median household income in 77573?
- $122,722 (±$7,914), 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 77573?
- 53 USPS carrier routes with 37,717 residential and 1,562 business mailboxes (39,281 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 77573?
- The closest, measured center to center: 77598 (3.8 mi, Webster), 77565 (4 mi, Kemah), 77058 (4.1 mi, Houston), 77539 (5 mi, Texas City), 77062 (5.7 mi, Houston) and 77518 (6 mi, Bacliff).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.