77551 ZIP Code, Galveston, TX
77551 is a ZIP code in Galveston, Texas in Galveston County. It covers 4.0 square miles of land, centered about 46 miles southeast of downtown Houston. The closest ZIP codes are 77555, 77550 and 77554. 21,696 people live here in 9,412 households. At about 5,487 people per square mile it is built up to city-neighborhood density, and owners and renters are mixed (48% own). Median household income is $58,344, below the Texas median of $78,476; 22% of residents moved in during the past year.
Quick facts
- Mailing city: Galveston, TX
- County: Galveston County
- Metro area: Houston
- Land area: 4.0 sq mi
- Population: 21,696
- Median household income: $58,344
- Carrier routes: 16 (9,983 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 21,696 |
| Households | 9,412 |
| Median household income | $58,344 |
| Income per person | $38,601 |
| Median age | 39.4 |
| Homeowners | 48.2% |
| Median home value | $290,600 |
| Median rent | $1,352 |
| Bachelor's degree or higher | 30.6% |
| Average commute (minutes) | 20.6 |
| Households with kids under 18 | 20.1% |
| Moved in the past year | 21.7% |
| Below the poverty line | 18.4% |
| Broadband internet | 94.1% |
| Speak a non-English language at home | 30.4% |
Household income
| % of households | Value |
|---|---|
| <$10K | 5.5% |
| $10–15K | 6.1% |
| $15–25K | 11.9% |
| $25–35K | 9.4% |
| $35–50K | 11.4% |
| $50–75K | 14.7% |
| $75–100K | 9.8% |
| $100–150K | 14.1% |
| $150–200K | 8.3% |
| $200K+ | 8.8% |
Age
| % of all residents | Value |
|---|---|
| <10 | 9.8% |
| 10–19 | 9.9% |
| 20–24 | 6.6% |
| 25–34 | 17.5% |
| 35–44 | 13.0% |
| 45–54 | 9.7% |
| 55–64 | 13.7% |
| 65–74 | 11.4% |
| 75+ | 8.4% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 16.8% |
| Owned outright | 22.3% |
| Rented | 41.5% |
| Vacant | 19.4% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 53.2% |
| Townhome | 1.9% |
| 2–4 units | 8.6% |
| 5–19 units | 20.2% |
| 20+ units | 15.7% |
| Mobile / other | 0.5% |
Businesses in 77551
399 business establishments with 6,054 employees (ZIP Codes Business Patterns 2023).
- Accommodation and Food Services: 88
- Retail Trade: 78
- Health Care and Social Assistance: 39
- Other Services (except Public Administration): 37
- Construction: 30
- Real Estate and Rental and Leasing: 28
- Finance and Insurance: 23
- Administrative and Support and Waste Management and Remediation Services: 20
EDDM carrier routes
77551 has 16 USPS carrier routes with 9,983 residential and 547 business mailboxes. Open the EDDM route map.
Carrier routes in 77551
77551 has 16 USPS carrier routes (16 city (C)) with 9,983 residential and 547 business mailboxes. Routes range from 335 homes (C003) to 1,113 homes (C033); the median route has 529 homes. The Census counted 9,412 households in 77551 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 0 |
| 250–499 | 7 |
| 500–749 | 5 |
| 750–999 | 2 |
| 1,000–1,499 | 2 |
| 1,500+ | 0 |
Best routes in 77551 for…
Highest income
For bigger-ticket offers: remodeling, pools, financial planning, private schools.
- Route C007 — Est. median household income $109,038, 370 homes
- Route C006 — Est. median household income $89,190, 732 homes
- Route C005 — Est. median household income $87,679, 754 homes
- Route C043 — Est. median household income $83,904, 397 homes
- Route C033 — Est. median household income $80,728, 1,113 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 C002 — Est. families with children under 18 36.1%, 702 homes
- Route C033 — Est. families with children under 18 26.8%, 1,113 homes
- Route C019 — Est. families with children under 18 26.6%, 923 homes
- Route C049 — Est. families with children under 18 24.9%, 539 homes
- Route C007 — Est. families with children under 18 23.9%, 370 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 C007 — Est. owner-occupied homes 92.8%, 370 homes
- Route C043 — Est. owner-occupied homes 73.8%, 397 homes
- Route C005 — Est. owner-occupied homes 73.3%, 754 homes
- Route C033 — Est. owner-occupied homes 70.6%, 1,113 homes
- Route C034 — Est. owner-occupied homes 67.6%, 518 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 C032 — Est. residents who moved in the past year 54.7%, 354 homes
- Route C037 — Est. residents who moved in the past year 31.2%, 471 homes
- Route C006 — Est. residents who moved in the past year 24.2%, 732 homes
- Route C048 — Est. residents who moved in the past year 23.6%, 1,101 homes
- Route C002 — Est. residents who moved in the past year 22.4%, 702 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 C032 — Est. homes built 2010 or later 19.9%, 354 homes
- Route C003 — Est. homes built 2010 or later 12.5%, 335 homes
- Route C002 — Est. homes built 2010 or later 11.0%, 702 homes
- Route C019 — Est. homes built 2010 or later 9.7%, 923 homes
- Route C041 — Est. homes built 2010 or later 8.7%, 690 homes
Select these 5 routes on the route map
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route C032 — USPS business mailboxes 120, 354 homes
- Route C003 — USPS business mailboxes 104, 335 homes
- Route C009 — USPS business mailboxes 77, 493 homes
- Route C043 — USPS business mailboxes 55, 397 homes
- Route C048 — USPS business mailboxes 47, 1,101 homes
Select these 5 routes on the route map
Every carrier route in 77551
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| C001 | City | 491 | 4 | $68,741 | 63.4% | 19.7% | 18.6% |
| C002 | City | 702 | 4 | $47,129 | 61.4% | 36.1% | 22.4% |
| C003 | City | 335 | 104 | $70,771 | 48.5% | 19.8% | 16.9% |
| C005 | City | 754 | 7 | $87,679 | 73.3% | 15.2% | 7.6% |
| C006 | City | 732 | 7 | $89,190 | 48.8% | 17.6% | 24.2% |
| C007 | City | 370 | 0 | $109,038 | 92.8% | 23.9% | 8.0% |
| C009 | City | 493 | 77 | $53,384 | 41.2% | 11.7% | 15.5% |
| C019 | City | 923 | 28 | $73,289 | 55.7% | 26.6% | 10.7% |
| C032 | City | 354 | 120 | $36,402 | 49.5% | 23.2% | 54.7% |
| C033 | City | 1,113 | 9 | $80,728 | 70.6% | 26.8% | 9.9% |
| C034 | City | 518 | 7 | $62,718 | 67.6% | 21.8% | 18.6% |
| C037 | City | 471 | 38 | $57,956 | 54.2% | 14.7% | 31.2% |
| C041 | City | 690 | 35 | $57,100 | 58.8% | 23.2% | 20.4% |
| C043 | City | 397 | 55 | $83,904 | 73.8% | 20.0% | 20.0% |
| C048 | City | 1,101 | 47 | $58,982 | 29.0% | 13.6% | 23.6% |
| C049 | City | 539 | 5 | $52,853 | 60.2% | 24.9% | 20.9% |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 77551 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
- 77555 — Galveston city, TX (4.1 mi)
- 77550 — Galveston city, TX (4.3 mi)
- 77554 — Galveston city, TX (6.3 mi)
- 77590 — Texas City city, TX (8.5 mi)
- 77568 — La Marque city, TX (11.1 mi)
- 77563 — Hitchcock city, TX (12.1 mi)
- 77591 — Texas City city, TX (13 mi)
- 77650 — Bolivar Peninsula CDP, TX (15 mi)
Areas that include 77551
- Galveston, TX ZIP codes — 4 ZIP codes
- Galveston County ZIP codes — 19 ZIP codes
- Houston ZIP code map — 238 ZIP codes
- Texas ZIP code data
Where it ranks
Mail every home in 77551
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) 77551, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 77551 in?
- 77551 is a Galveston, TX mailing address. By land area, 100% lies inside Galveston.
- What county is 77551 in?
- 77551 is in Galveston County.
- What is the population of 77551?
- About 21,696 people (±1,076), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 22,677.
- What is the median household income in 77551?
- $58,344 (±$6,931), 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 77551?
- 16 USPS carrier routes with 9,983 residential and 547 business mailboxes (10,531 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 77551?
- The closest, measured center to center: 77555 (4.1 mi, Galveston), 77550 (4.3 mi, Galveston), 77554 (6.3 mi, Galveston), 77590 (8.5 mi, Texas City), 77568 (11.1 mi, La Marque) and 77563 (12.1 mi, Hitchcock).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.