Zip Code 77521
Baytown, Texas — Harris County
📍 ZIP code 77521 is in Baytown, Harris County, Texas.
ZIP code 77521 is located in Baytown, Harris County, Texas. It is a zip code in the Central (CST/CDT) Time Zone with an estimated population of 65,920. The area code for ZIP code 77521 is 713.
Quick Answer
Zip code 77521 is in Baytown, Texas (Harris County). It has a population of 65,920, median household income of $76,012, and median home value of $220,100.
Population
65,920
Income
$76,012
Home Value
$220,100
Climate
92°F / 41°F
About Zip Code 77521
Zip code 77521 is located in Baytown, Texas, within Harris County. Home to approximately 65,920 residents, this area sits at an elevation of 35 ft and falls within the Central (CST/CDT) timezone. The local area code is 713.
The median household income is $76,012 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $220,100, and the cost of living index is 83 (17% below the national average of 100).
Summers average a high of 92°F while winters drop to 41°F. The area receives about 65 in of rain annually. The zip code covers 41.5 square miles of land area and 0.4 square miles of water.
Key Statistics
65,920
$76,012
$220,100
Central (CST/CDT)
713
35 ft
41.5 sq mi
33.2
25,131
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Compare With Nearby Zip Codes
| Metric | 77521 | 77520 | 77562 | 77530 | 77571 | 77532 |
|---|---|---|---|---|---|---|
| City | Baytown, TX | Baytown, TX | Highlands, TX | Channelview, TX | La Porte, TX | Crosby, TX |
| Population | 65,920 | 35,724 | 9,805 | 32,065 | 37,659 | 31,778 |
| Median Income | $76,012 | $54,249 | $63,636 | $64,151 | $83,795 | $89,740 |
| Home Value | $220,100 | $144,200 | $195,300 | $170,600 | $220,300 | $243,700 |
| Cost of Living | 83 | 60 | 73 | 65 | 86 | 98 |
| Median Age | 33.2 | 37.1 | 38.4 | 32.3 | 37.5 | 34.8 |
Cost of Living
100 = National Average. Baytown's cost of living is 17% below the national average.
vs. State Avg
Below
Affordability
Affordable
Income-to-Home
2.9x
Demographics
Zip code 77521 has a population of 65,920 people with a median age of 33.2. There are 25,131 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Baytown (77521) population trend from 2010 to 2024
↑ 4.5%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
92°F
41°F
65 in
0 in
Baytown experiences hot summers with average highs around 92°F. Winters are mild with lows averaging 41°F. The area receives virtually no snowfall.
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Housing & Economy
Median Home Value
$220,100
Median Household Income
$76,012
With 25,131 housing units across 41.5 square miles, 77521 has a housing density of 606 units per square mile. The home price-to-income ratio is 2.9x.
Location & Geography
Latitude
29.8019°
Longitude
-94.9717°
Land Area
41.5 sq mi
Water Area
0.4 sq mi
Nearby Zip Codes
Zip codes closest to 77521 (Baytown, TX) with distances:
All Zip Codes in Baytown, TX
Other zip codes serving Baytown:
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ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 77521's $76,012. A way to compare Baytown to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 77521 (Baytown, TX). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is Baytown, Texas?
Baytown, Texas uses zip code 77521 along with 1 other zip codes.
What county is zip code 77521 in?
Zip code 77521 is located in Harris County, Texas.
What is the population of zip code 77521?
The population of zip code 77521 is 65,920 with a median age of 33.2.
Is 77521 in Baytown, Texas?
Yes, zip code 77521 is in Baytown, Harris County, Texas. The area code is 713.
Frequently Asked Questions
What city is zip code 77521 in?
Zip code 77521 is in Baytown, Texas. It is part of Harris County and uses the Central (CST/CDT) timezone.
What is zip code 77521?
Zip code 77521 is a U.S. postal code in Baytown, Texas (Harris County). It has a population of 65,920 and covers 41.5 square miles.
What is the population of zip code 77521?
The population of zip code 77521 (Baytown, TX) is 65,920 with a median age of 33.2. There are approximately 25,131 housing units in this area.
What is the median income in zip code 77521?
The median household income in zip code 77521 (Baytown, TX) is $76,012 per year. The cost of living index is 83 (100 = national average).
What is the average home price in zip code 77521?
The median home value in zip code 77521 (Baytown, TX) is $220,100. The cost of living index is 83 compared to the national average of 100.
What county is zip code 77521 in?
Zip code 77521 is located in Harris County, Texas. The primary city is Baytown.
What is the area code for zip code 77521?
Zip code 77521 in Baytown, TX uses area code 713. It is located in the Central (CST/CDT) timezone.
Is zip code 77521 a good place to live?
Zip code 77521 (Baytown, TX) has a cost of living index of 83 (100 = national average), a median household income of $76,012, and median home values of $220,100. The median age is 33.2. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 77521?
The cost of living index for zip code 77521 (Baytown, TX) is 83, where 100 represents the national average. This area is below the national average. Median home value: $220,100.
What schools serve zip code 77521?
Zip code 77521 in Baytown, Texas is served by the local school district of Harris County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.