San Antonio, TX · standard
ZIP Code 78251
Bexar County, Texas - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 49,435
- 1,258/sq mi High-density area
- $78,958
- Median income Near-median income area
- $268,300
- Median home value Near-median home value
- 33.8%
- Bachelor's or higher Above-average bachelor's attainment
National ZIP placement
San Antonio pairs an above-median household income with above-median home values, in a low-density, mixed-tenure area.
- Top 39%
- household income, US ZIPs
- Top 39%
- home value, US ZIPs
- 1,258
- people per sq mi
- 51%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 78251 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 78251 (San Antonio, TX) rose +4.4% from 2023 to 2024. The all-transactions index moved from 292.7 in 2023 to 305.7 in 2024 (2000 = 100).
ZIP code 78251 is a densely settled ZIP (a standard USPS delivery area) in San Antonio, Bexar County, Texas, with 49,435 residents across 39.3 square miles, a density of 1,258 people per square mile, in the Chicago time zone.
ZIP 78251 lands in the middle-income range, with a median household income of $78,958 (4% above the average Texas ZIP), while per-capita income is $37,549. The poverty rate is 8.7%, with unemployment at 7.5%; those measures add context to the income figure. Median home value is $268,300 (8% above the average Texas ZIP) and median rent is $1,413; 50.8% of occupied homes are owner-occupied.
A solid share of residents have a four-year degree: 33.8% of adults hold a bachelor's degree or higher, the median age is 33.2, and the average commute is 25 minutes. The page also surfaces 10 ZIP codes within roughly 10 miles and 6 more in Bexar County, so 78251 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 78251
Top 5 sectors by establishment count in San Antonio, TX
Which industries have the most business establishments in ZIP 78251.
- Health care and social assistance
Health care and social assistance
208 establishments
- Accommodation and food services
Accommodation and food services
159 establishments
- Retail trade
Retail trade
136 establishments
- Finance and insurance
Finance and insurance
89 establishments
- Other services (except public administration)
Other services (except public administration)
85 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 78251, San Antonio, 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
49,435
Population
39.3
Area (sq mi)
1,258
People / sq mi
Chicago
Time Zone
standard
ZIP Type
Who lives in ZIP 78251?
33.2
Median Age
48.2%
Male
51.8%
Female
9.1%
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?
$78,958
Median Household Income
+4% vs state ZIP avg
$37,549
Per Capita Income
8.7%
Poverty Rate
7.5%
Unemployment Rate
24.5 min
Mean Commute Time
How ZIP 78251 ranks nationally
San Antonio, TX household income vs. every US ZIP code
Median household income, the full national distribution, with this ZIP marked
$78,958 Top 39% higher than 61% 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
23,491housing units
23,491
Total Housing Units
22,275
Occupied Units
1,216
Vacant Units
2.66
Avg Household Size
Occupancy Type
$268,300
Median Home Value
+8% vs state ZIP avg
$1,413
Median Rent
2002
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
+4.4%
YoY Change (2024)
306
HPI Index (2000 = 100)
+206%
Total Change Since 2000
Home values in ZIP 78251 have increased 4.4% over the past year (2024). Since 2000, this ZIP has seen +206% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2020 | +3.9% | 211 |
| 2021 | +15.3% | 243 |
| 2022 | +19.3% | 290 |
| 2023 | +0.9% | 293 |
| 2024 | +4.4% | 306 |
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 968 business establishments in ZIP 78251, employing approximately 30,862 people with a combined annual payroll of $1,660,711,000.
968
Businesses
30,862
Employees
$1.7B
Annual Payroll
15
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Health care and social assistance | 208 | 21.5% |
| Accommodation and food services | 159 | 16.4% |
| Retail trade | 136 | 14.1% |
| Finance and insurance | 89 | 9.2% |
| Other services (except public administration) | 85 | 8.8% |
| Real estate and rental and leasing | 58 | 6.0% |
| Construction | 56 | 5.8% |
| Professional, scientific, and technical services | 51 | 5.3% |
| Administrative and support and waste management and remediation services | 39 | 4.0% |
| Information | 23 | 2.4% |
| Transportation and warehousing | 19 | 2.0% |
| Wholesale trade | 14 | 1.4% |
| Arts, entertainment, and recreation | 11 | 1.1% |
| Manufacturing | 9 | 0.9% |
| Educational services | 9 | 0.9% |
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 78251 vs 78250 →
ZIP 78251 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 78228
San Antonio (78228)
58,811 residents
- 78245
San Antonio (78245)
56,511 residents
- 78250
San Antonio (78250)
54,903 residents
- 78240
San Antonio (78240)
51,111 residents
- 78251
San Antonio (78251)
49,435 residents
- 78227
San Antonio (78227)
46,077 residents
- 78254
San Antonio (78254)
44,817 residents
- 78253
San Antonio (78253)
29,007 residents
- 78229
San Antonio (78229)
28,804 residents
What this shows Among its immediate neighbors, ZIP 78251 ranks #5 by population - useful context the national average alone can't give.
ZIP 78251 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 78254
San Antonio (78254)
$115,526 median income
- 78253
San Antonio (78253)
$106,373 median income
- 78245
San Antonio (78245)
$90,029 median income
- 78250
San Antonio (78250)
$80,659 median income
- 78251
San Antonio (78251)
$78,958 median income
- 78236
Jbsa Lackland (78236)
$69,219 median income
- 78240
San Antonio (78240)
$63,351 median income
- 78238
San Antonio (78238)
$57,769 median income
- 78228
San Antonio (78228)
$52,976 median income
What this shows By household income, ZIP 78251 ranks #5 of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 78250 | San Antonio, TX | 54,903 | 2.9 mi |
| 78238 | San Antonio, TX | 23,514 | 3.5 mi |
| 78227 | San Antonio, TX | 46,077 | 4.8 mi |
| 78228 | San Antonio, TX | 58,811 | 6.3 mi |
| 78245 | San Antonio, TX | 56,511 | 5.2 mi |
| 78236 | Jbsa Lackland, TX | 10,392 | 6.1 mi |
| 78253 | San Antonio, TX | 29,007 | 6.9 mi |
| 78240 | San Antonio, TX | 51,111 | 6.0 mi |
| 78254 | San Antonio, TX | 44,817 | 6.4 mi |
| 78229 | San Antonio, TX | 28,804 | 6.9 mi |
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 78251, 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 (49,435 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Bexar County
Related Areas
Frequently Asked Questions
What county is ZIP code 78251 in?
ZIP code 78251 (San Antonio) is located in Bexar County, Texas. Bexar County contains multiple ZIP codes, see the full list at /counties/bexar-tx.
What is the population of ZIP code 78251?
ZIP code 78251 in San Antonio, TX has a population of 49,435 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 78251?
The median household income in ZIP 78251 is $78,958, which is 3% above the national average of $76,288.
What is the average home value in ZIP 78251?
The median home value in ZIP 78251 is $268,300, which is 4% below the national average of $278,155.
What is the demographic makeup of ZIP 78251?
The largest racial group in ZIP 78251 is White at 40.0%. Hispanic or Latino residents make up 61.9% of the population.
How many businesses are in ZIP code 78251?
ZIP code 78251 has 968 business establishments employing approximately 30,862 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 78251?
The top industries by establishment count in ZIP 78251 are: Health care and social assistance (208), Accommodation and food services (159), Retail trade (136). There are 15 industry sectors represented in total.
How have home values changed in ZIP code 78251?
According to the FHFA House Price Index, home values in ZIP 78251 increased by 4.4% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 206%. 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 78251?
In ZIP code 78251, 58.8% of residents aged 25+ have a high school diploma or higher, and 33.8% 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 78251?
The mean commute time for workers in ZIP code 78251 is 24.5 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 78251?
In ZIP code 78251, approximately 50.8% of occupied housing units are owner-occupied and 49.2% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 78251?
The poverty rate in ZIP code 78251 is 8.7% 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 78251's numbers, next.
- See how ZIP 78251 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where San Antonio, 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.