PlainZIP

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
$73,629
Median income
$231,400
Median home value
16.9%
Bachelor's or higher

The verdict

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.

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 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.

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. 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 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.

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 · ZIP Code Business Patterns (ZBP) As of 2023

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

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 77521?

32.9

Median Age

50.5%

Male

49.5%

Female

20.3%

Foreign-Born

White 36.8%
African American 16.3%
Asian 2.4%
American Indian or Alaska Native 0.5%
Native Hawaiian or Pacific Islander 0.3%
Two or More Ethnicities 23.5%
Hispanic or Latino 52.8%

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

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

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). This entry sits in this band. $80,000–$100,000: 5,778 US ZIPs (19%). Above this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

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?

High School Graduate or Higher 47.1%
Bachelor's Degree or Higher 16.9%

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

Owner 58.2%
Renter 41.8%

$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 →

ZIP 77521 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 77521 ranks the most populous - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 77521 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

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.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
77520 Baytown, TX 36,489 4.5 mi
77523 Baytown, TX 17,031 6.0 mi
77562 Highlands, TX 10,459 5.7 mi
77530 Channelview, TX 31,086 8.8 mi
77580 Mont Belvieu, TX 312 7.5 mi
77571 La Porte, TX 35,666 9.1 mi
77532 Crosby, TX 26,236 10.6 mi

More ZIP Codes in Harris County

77084 standard
Houston, TX
Pop: 95,137
77449 standard
Katy, TX
Pop: 94,382
77429 standard
Cypress, TX
Pop: 72,264
77036 standard
Houston, TX
Pop: 71,969
77450 standard
Katy, TX
Pop: 71,889
77083 standard
Houston, TX
Pop: 70,837

Related Areas

Harris County Baytown, TX Texas

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.

Read our methodology to see how this data is sourced, computed, and verified.