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ZIP Code · TX

ZIP 78231

Pop. 9,744·Bexar County·566th most expensive ZIP in Texas
Median rent (all units)
$1,299/mo
Year-over-Year
Stable
Month-over-Month
+2.7%
vs US Median
-$666
Rising (Monthly)
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Most AffordableMost Expensive
ZIP 78231 · $1,299
More affordable than 87% of US ZIP codes · National median $1,965/mo
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Medians by bedroom

Rent by unit size

Studio
$1,100
1 BR
$1,200
2 BR
$1,460
3 BR
$1,870
4 BR+
$2,180
Research median
$1,460/mo

Bedroom estimates are gross rents that include essential utilities (electricity, water, gas, sewer, trash).

Rent trends

12-month history

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Last updated: July 20, 2026

Annual cost
$15,588/yr
At $1,299/mo median
Location
StateTX
CountyBexar County
Rent Market Meter
Landlord's Market
Renter's MarketBalancedLandlord's Market
Rents are climbing (0.0% YoY), so leverage tilts toward landlords. Act sooner rather than later.
Based on rent-price momentum (+0.0% YoY, +2.7% MoM), not inventory.
Demographics

Who lives here

ZIP 78231 (San Antonio, TX) is majority owner-occupied, has a large retiree population, has a median income above the national average, 65.7% of residents hold a bachelor's degree or higher.

Population
9,744
Median income
$109,183
Median age
41.2
Renters
33.8%
Age distribution
20.8%
25.4%
21.9%
20.4%
Under 1820.8%
18–3425.4%
35–5421.9%
55–6411.4%
65+20.4%
Gender
48.6%
51.4%
Male48.6%
Female51.4%
Race & ethnicity
61.1%
39.3%
White61.1%
Black4.5%
Hispanic39.3%
Asian3.7%
Education (25+)
12.5%
21.4%
65.7%
HS diploma12.5%
Some college21.4%
Bachelor's+65.7%
Housing tenure
66.2%
33.8%
Owner66.2%
Renter33.8%

Source: U.S. Census Bureau · ACS 2024 5-Year Estimates

2021 vs 2026

How ZIP 78231 in San Antonio, TX has changed in 5 years

Income
$103,504 → $109,183
up 5.5%
Population
10,109 → 9,744
down 3.6%
Renter share
31.4% → 33.8%
+2.4 pts
Bachelor's+
57.3% → 65.7%
+8.4 pts
Median age
40.2 → 41.2
+1.0 yrs

Census figures show median household income at $109,183 today, compared with $103,504 five years earlier. The population has contracted by 3.6% since 2021, moving from about 10,109 residents to roughly 9,744. Renters now make up 33.8% of households, compared with 31.4% five years ago. College-educated residents now make up 65.7% of adults here, versus 57.3% in 2021.

Community

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Local insights

Tips for renters in ZIP 78231

About renting in ZIP 78231

Last updated: July 20, 2026

ZIP code 78231 covers San Antonio, TX. The median rent here is $1,299/mo as of July 2026. A 1-bedroom rents for a median of $1,200/mo. A 2-bedroom rents for a median of $1,460/mo.

At 14% of local median household income ($109,183/yr), ZIP 78231 ranks as affordable compared to the national benchmark of 30%. Rent prices have stayed steady over the past year.

FAQ

Frequently asked questions

How much is rent in ZIP code 78231?

As of July 20, 2026, the median monthly rent in ZIP 78231 (San Antonio, TX) is $1,299. This is based on aggregated data from public sources and community submissions.

How does ZIP 78231 rent compare to the US average?

ZIP 78231's median rent of $1,299/mo is $666 (34%) below the US national median of $1,965/mo.

How does ZIP 78231 compare to other ZIPs in Texas?

ZIP 78231 is among the more affordable ZIP codes in Texas, ranking #566 out of 689 ZIPs at $1,299/mo.

How much income do you need to rent in ZIP 78231?

To keep rent at or below 30% of gross income, you would need to earn at least $52,000/year (~$25/hour full-time) to afford the median rent of $1,299/mo in ZIP 78231. The local median household income is $109,183/yr, meaning the typical household meets that threshold.

Is rent going up or down in ZIP 78231?

Rent in ZIP 78231 has been relatively stable over the past year, with a 0.0% change year over year as of July 20, 2026.

Is ZIP 78231 an affordable place to rent?

ZIP 78231 is considered very affordable for renters. At $1,299/mo, rent takes approximately 14% of the local median household income ($109,183/yr). The standard benchmark is 30%. ZIP 78231 falls comfortably within that range.

What percentage of ZIP 78231 residents rent vs. own?

According to Census data, approximately 33.8% of ZIP 78231 households are renters, while 66.2% are owner-occupied. ZIP 78231 leans toward homeownership, which can mean a smaller rental inventory.

How does ZIP 78231 compare to the rest of San Antonio?

ZIP 78231 is more affordable than San Antonio overall. At $1,299/mo, it's $83 below the San Antonio citywide median of $1,382/mo.

When was rent data for ZIP 78231 last updated?

Rent data for ZIP 78231 reflects July 20, 2026. RentDataNow refreshes all data monthly using public and private datasets.
Income Affordability
14%
VERY AFFORDABLE

At $1,299/mo, rent takes ~14% of ZIP 78231's median household income ($109,183/yr). The standard benchmark is 30%.

ZIP 78231 14%Benchmark 30%
State income taxNone
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Schools nearby

Public schools near ZIP 78231 (San Antonio, TX)

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