78203 Property Tax Rate
San Antonio, Texas · Part of Bexar County
Effective Tax Rate
1.57%
30% below state avgMedian Annual Tax
$2,191
$183/mo escrow
Estimate Your Tax
Annual Tax
$2,191
Monthly
$183
Eff. Rate
1.57%
Buyer decision brief
What ZIP 78203 means for your housing budget
Use this ZIP page to compare recurring tax burden before you compare listing prices. The numbers below are Census ZCTA estimates, so they are strongest for neighborhood comparison and weakest for parcel-specific tax planning.
Monthly escrow signal
$183/mo
Based on median annual tax paid
State context
0.21 percentage points above the Texas average
Texas average: 1.35%
Data confidence
Use cautionThe Census margin of error is $953, about 43% of the median tax estimate.
Verify before you offer
- Confirm parcel assessed value with Bexar County assessor.
- Check homestead, senior, veteran, and disability exemptions.
- Ask whether purchase triggers reassessment or value-cap reset.
- Review school district and special assessment boundaries.
Lower-rate similar ZIPs
This is informational content, not tax, legal, or mortgage advice. Local assessor records remain the source of truth for a specific property.
Data confidence ledger
Can you trust ZIP 78203 for comparison?
ACS vintage
2019-2023 ACS 5-Year Estimates
Five-year Census ZCTA estimates.
ZCTA caveat
Census area, not parcel boundary
USPS ZIP routes and taxing districts can differ inside the same area.
Field completeness
3/3 required fields
Median tax, home value, and derived rate are present.
MOE status
High margin of error
$953 tax MOE, 43% of the median tax estimate.
Last site refresh
March 10, 2026
Dataset and page-quality audit run locally before publication.
County fallback
County context only
Bexar County is used for assessor verification and broader context.
Tax bill anatomy
What can change your actual bill in ZIP 78203
Use the ZIP estimate to compare neighborhoods, then verify these parcel-level inputs before relying on a payment estimate.
Assessed value
The ZCTA median home value is $139,900, but your bill starts with the local assessed value for a specific parcel.
Effective rate
The displayed rate is 1.57%, derived from median tax paid divided by median home value.
Exemptions
Homestead, senior, veteran, disability, and local exemptions can reduce taxable value. Confirm eligibility before estimating escrow.
Reassessment
A purchase can change assessed value depending on Texas and county rules. Ask how sale price affects the next assessment cycle.
Escrow impact
The median tax paid in this ZCTA equals about $183 per month before insurance, HOA dues, or special assessments.
Assessor verification
Bexar County assessor or tax collector records are the source of truth for parcel taxes, appeal windows, and exemptions.
How ZIP 78203 Compares
Median Annual Property Tax
ZIP 78203
1.57%
Effective rate
Texas Avg
1.35%
Effective rate
National Avg
1.10%
Effective rate
State Ranking
Property Tax Rank in Texas
Higher than 70% of ZIP codes in Texas(70th percentile, 1,654 ZIPs compared)
Property Tax Analysis
Property Tax Insights for ZIP 78203
Property owners in ZIP code 78203 (San Antonio, Texas) pay a median of $2,191/year in property taxes on homes valued at $139,900. This translates to an effective tax rate of 1.57%, which is 16% above the Texas state average of 1.35%.
The monthly property tax burden for a median-valued home in 78203 is approximately $183, which factors into escrow payments on mortgages. This ZIP code is located within Bexar County. This is $940 less than the Texas average of $3,131/year.
Compared to similar ZIP codes in Texas, 78203 has lower property taxes. ZIP codes with similar effective rates include 75248 (1.57%) and 78521 (1.57%).
In San Antonio, property taxes represent approximately 6.3% of the median household income of $34,815, providing context for the relative tax burden on homeowners in this area.
If you're considering purchasing a home in 78203, keep in mind that property taxes are based on the assessed value assigned by the local assessor, which may differ from the purchase price. In some states, properties are reassessed at or near the sale price upon transfer of ownership. For the most current tax information for a specific property, consult Bexar County's tax assessor directly.
Frequently Asked Questions
What is the property tax rate in ZIP code 78203?
How much are property taxes in San Antonio, TX (78203)?
How does ZIP 78203 compare to the Texas average?
What is the median home value in ZIP 78203?
What county is ZIP code 78203 in?
Margin of Error
The median property tax estimate for this ZIP code has a margin of error of ±$953. ZCTA-level data has wider margins than county-level estimates due to smaller sample sizes.
County-Level Data
ZIP code 78203 is part of Bexar County, Texas. View the full county profile for broader context and more data.
View Bexar County on TaxByCounty →Explore San Antonio, TX
View all 57 ZIP codes in San Antonio with property tax comparisons.
View San Antonio Property Tax Rates →Why compare these ZIPs?
Better comparison set for ZIP 78203
Each ZIP highlights a homebuyer tradeoff: lower rate, stronger value context, shared county rules, city boundary changes, or nearby missing data.
78266
San Antonio, TX
0.20 percentage points lower than ZIP 78203.
Rate
1.36%
Tax
$7,551
Quality
94
78264
San Antonio, TX
0.47 percentage points lower than ZIP 78203.
Rate
1.10%
Tax
$1,477
Quality
89
78220
San Antonio, TX
0.42 percentage points lower than ZIP 78203.
Rate
1.14%
Tax
$1,427
Quality
89
78228
San Antonio, TX
0.28 percentage points lower than ZIP 78203.
Rate
1.28%
Tax
$2,115
Quality
94
78207
San Antonio, TX
0.28 percentage points lower than ZIP 78203.
Rate
1.29%
Tax
$1,198
Quality
94
78263
San Antonio, TX
0.20 percentage points lower than ZIP 78203.
Rate
1.36%
Tax
$4,265
Quality
89
78226
San Antonio, TX
0.20 percentage points lower than ZIP 78203.
Rate
1.37%
Tax
$1,498
Quality
79
78210
San Antonio, TX
0.18 percentage points lower than ZIP 78203.
Rate
1.39%
Tax
$2,398
Quality
94
Data from U.S. Census Bureau, American Community Survey 2019-2023 5-Year Estimates (ZCTA level). ZIP Code Tabulation Areas (ZCTAs) are Census approximations of USPS ZIP codes.
Estimates are informational only and should not be used as financial or legal advice.