Baytown, TX · standard
ZIP Code 77521
Harris County, Texas - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 49,507
- 461/sq mi High-density area
- $73,629
- Median income Near-median income area
- $231,400
- Median home value Near-median home value
- 16.9%
- Bachelor's or higher Below-average bachelor's attainment
National ZIP placement
Baytown pairs an above-median household income with above-median home values, in a low-density, mixed-tenure area.
- Top 47%
- household income, US ZIPs
- Top 47%
- home value, US ZIPs
- 461
- people per sq mi
- 58%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 77521 against every reporting US ZIP.
FHFA HPI release change
What changed in the latest House Price Index year
- FHFA House Price Index values in ZIP 77521 (Baytown, TX) rose +9.4% from 2023 to 2024. The all-transactions index moved from 269.9 in 2023 to 295.1 in 2024 (2000 = 100).
ZIP code 77521 is a densely settled ZIP (a standard USPS delivery area) in Baytown, Harris County, Texas, with 49,507 residents across 107.5 square miles, a density of 461 people per square mile, in the Chicago time zone.
ZIP 77521 lands in the middle-income range, with a median household income of $73,629 (3% below the average Texas ZIP), while per-capita income is $32,886. The poverty rate is 15.4%, with unemployment at 9.7%; those measures add context to the income figure. Median home value is $231,400 (7% below the average Texas ZIP) and median rent is $1,390; 58.2% of occupied homes are owner-occupied.
Educational attainment sits below the national norm: 16.9% of adults hold a bachelor's degree or higher, the median age is 32.9, and the average commute is 25 minutes. The page also surfaces 7 ZIP codes within roughly 10 miles and 6 more in Harris County, so 77521 can be compared with both its immediate and county-level context.
Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →
Top industries in ZIP 77521
Top 5 sectors by establishment count in Baytown, TX
Which industries have the most business establishments in ZIP 77521.
- Health care and social assistance
Health care and social assistance
170 establishments
- Retail trade
Retail trade
166 establishments
- Accommodation and food services
Accommodation and food services
119 establishments
- Other services (except public administration)
Other services (except public administration)
94 establishments
- Finance and insurance 67
Finance and insurance
67 establishments
What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 77521, Baytown, TX · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.
Quick Facts
49,507
Population
107.5
Area (sq mi)
461
People / sq mi
Chicago
Time Zone
standard
ZIP Type
Who lives in ZIP 77521?
32.9
Median Age
50.5%
Male
49.5%
Female
20.3%
Foreign-Born
Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How much do residents earn?
$73,629
Median Household Income
-3% vs state ZIP avg
$32,886
Per Capita Income
15.4%
Poverty Rate
9.7%
Unemployment Rate
25.2 min
Mean Commute Time
How ZIP 77521 ranks nationally
Baytown, TX household income vs. every US ZIP code
Median household income, the full national distribution, with this ZIP marked
$73,629 Top 47% higher than 53% of 30,318 US ZIPs
Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
25,879housing units
25,879
Total Housing Units
24,321
Occupied Units
1,558
Vacant Units
2.82
Avg Household Size
Occupancy Type
$231,400
Median Home Value
-7% vs state ZIP avg
$1,390
Median Rent
1997
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How have home values changed over time?
FHFA House Price Index, annual appreciation data based on repeat sales and appraisals
+9.4%
YoY Change (2024)
295
HPI Index (2000 = 100)
+195%
Total Change Since 2000
Home values in ZIP 77521 have increased 9.4% over the past year (2024). Since 2000, this ZIP has seen +195% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2020 | +3.5% | 196 |
| 2021 | +10.1% | 216 |
| 2022 | +13.8% | 245 |
| 2023 | +10.0% | 270 |
| 2024 | +9.4% | 295 |
Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.
What businesses operate in this ZIP?
Census Bureau data shows 908 business establishments in ZIP 77521, employing approximately 17,772 people with a combined annual payroll of $966,801,000.
908
Businesses
17,772
Employees
$966.8M
Annual Payroll
16
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Health care and social assistance | 170 | 18.7% |
| Retail trade | 166 | 18.3% |
| Accommodation and food services | 119 | 13.1% |
| Other services (except public administration) | 94 | 10.3% |
| Finance and insurance | 67 | 7.4% |
| Professional, scientific, and technical services | 61 | 6.7% |
| Real estate and rental and leasing | 46 | 5.1% |
| Construction | 39 | 4.3% |
| Transportation and warehousing | 39 | 4.3% |
| Administrative and support and waste management and remediation services | 29 | 3.2% |
| Wholesale trade | 27 | 3.0% |
| Manufacturing | 21 | 2.3% |
| Information | 9 | 1.0% |
| Educational services | 7 | 0.8% |
| Management of companies and enterprises | 6 | 0.7% |
| Arts, entertainment, and recreation | 6 | 0.7% |
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
Nearby ZIP Codes
Want a side-by-side? Compare 77521 vs 77520 →
ZIP 77521 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 77521
Baytown (77521)
49,507 residents
- 77520
Baytown (77520)
36,489 residents
- 77571
La Porte (77571)
35,666 residents
- 77530
Channelview (77530)
31,086 residents
- 77532
Crosby (77532)
26,236 residents
- 77523 17,031
Baytown (77523)
17,031 residents
- 77562 10,459
Highlands (77562)
10,459 residents
- 77580 312
Mont Belvieu (77580)
312 residents
What this shows Among its immediate neighbors, ZIP 77521 ranks the most populous - useful context the national average alone can't give.
ZIP 77521 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 77523
Baytown (77523)
$124,188 median income
- 77532
Crosby (77532)
$92,201 median income
- 77571
La Porte (77571)
$81,850 median income
- 77521
Baytown (77521)
$73,629 median income
- 77530
Channelview (77530)
$62,195 median income
- 77562
Highlands (77562)
$57,364 median income
- 77520
Baytown (77520)
$54,278 median income
What this shows By household income, ZIP 77521 ranks #4 of 7 neighboring ZIPs, local affluence varies block to block, not just metro to metro.
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 77521, both outside TX so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar population
Nearest cross-state ZIPs by resident population (49,507 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Harris County
Related Areas
Frequently Asked Questions
What county is ZIP code 77521 in?
ZIP code 77521 (Baytown) is located in Harris County, Texas. Harris County contains multiple ZIP codes, see the full list at /counties/harris-tx.
What is the population of ZIP code 77521?
ZIP code 77521 in Baytown, TX has a population of 49,507 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 77521?
The median household income in ZIP 77521 is $73,629, which is 3% below the national average of $76,288.
What is the average home value in ZIP 77521?
The median home value in ZIP 77521 is $231,400, which is 17% below the national average of $278,155.
What is the demographic makeup of ZIP 77521?
The largest racial group in ZIP 77521 is White at 36.8%. Hispanic or Latino residents make up 52.8% of the population.
How many businesses are in ZIP code 77521?
ZIP code 77521 has 908 business establishments employing approximately 17,772 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 77521?
The top industries by establishment count in ZIP 77521 are: Health care and social assistance (170), Retail trade (166), Accommodation and food services (119). There are 16 industry sectors represented in total.
How have home values changed in ZIP code 77521?
According to the FHFA House Price Index, home values in ZIP 77521 increased by 9.4% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 195%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 77521?
In ZIP code 77521, 47.1% of residents aged 25+ have a high school diploma or higher, and 16.9% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 77521?
The mean commute time for workers in ZIP code 77521 is 25.2 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend less time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 77521?
In ZIP code 77521, approximately 58.2% of occupied housing units are owner-occupied and 41.8% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 77521?
The poverty rate in ZIP code 77521 is 15.4% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.
Related
Take this with you
What to do with ZIP 77521's numbers, next.
- See how ZIP 77521 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Baytown, TX ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
- Save this ZIP to your shortlist to track alongside others you're considering View your shortlist
ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.