ZIP Code 77521
standardSource:
Baytown · Harris County · Texas
- Population
- 49,507
- Median income
- $73,629
- Median home value
- $231,400
- Bachelor's or higher
- 16.9%
- Land area
- 107.5 sq mi
461/sq mi
▼ 3% vs US
higher than 53% of US ZIPs
▼ 17% vs US
higher than 53% of US ZIPs
Median age 32.9
Chicago
ZIP code 77521 in Baytown, Texas has a population of 49,507. The median household income is $73,629, which is 3% below the national average. Median home value is $231,400, 17% below the US average. 16.9% of residents hold a bachelor's degree or higher.
ZIP code 77521 is classified by USPS as a standard delivery area and covers roughly 107.5 square miles in Baytown, Harris County, Texas. The area is home to 49,507 residents, producing a population density of 461 people per square mile, and falls within the Chicago time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 77521 against Texas and the nation.
On the economic side, the median household income for ZIP 77521 sits at $73,629 (3% below the Texas average), while per-capita income is $32,886. The poverty rate stands at 15.4% and the unemployment rate at 9.7%. On housing, the median home value is $231,400 (7% below the state average) with median rent at $1,390 per month, and 58.2% of occupied units are owner-occupied, a direct signal of whether 77521 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 16.9% of adults hold a bachelor's degree or higher, the median age is 32.9, and the average commute is 25 minutes. We also surface 7 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Harris County, so you can benchmark 77521 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →
Top industries in ZIP 77521
Top 5 sectors by establishment count
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 + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, 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; HUD FMR + 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
$32,886
Per Capita Income
15.4%
Poverty Rate
9.7%
Unemployment Rate
25.2 min
Mean Commute Time
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?
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
$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 →
More ZIP Codes in Harris County
Related Areas
Frequently Asked Questions
What county is ZIP code 77521 in? ▼
What is the population of ZIP code 77521? ▼
What is the median household income in ZIP 77521? ▼
What is the average home value in ZIP 77521? ▼
What is the demographic makeup of ZIP 77521? ▼
How many businesses are in ZIP code 77521? ▼
What are the main industries in ZIP code 77521? ▼
How have home values changed in ZIP code 77521? ▼
What is the education level in ZIP code 77521? ▼
What is the average commute time in ZIP 77521? ▼
What percentage of residents own vs. rent in ZIP 77521? ▼
What is the poverty rate in ZIP code 77521? ▼
ZIP Code Research Guides
Official Data Resources for Baytown, TX
Verify and explore additional data for this area using these official government sources.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023). Business data: Source: Census ZIP Code Business Patterns (ZBP) 2023. Home value trends: Source: FHFA House Price Index (HPI), Five-Digit ZIP Codes.
PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.
Read our methodology , how this data is sourced, computed, and verified.