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US ZIP Code Profile

ZIP Code 78066
Rio Medina, Texas

ZIP code 78066 is in Rio Medina, located in Medina County, Texas, within the San Antonio-New Braunfels metro area. Its 2020 Census population was 650. The estimated median adjusted gross income per tax return is $77,500, and about 9% of filers report $200,000 or more.

2020 Population
650
Census ZCTA
County
Medina
FIPS 48325
Median income (est.)
$77,500
IRS SOI 2022
Land Area
25.547 mi²
+ 0.13 mi² water

01Location & Geography

Authoritative geographic identifiers from the U.S. Census Bureau, ANSI, and FIPS standards.

Primary CityRio Medina, TX
CountyMedina County (FIPS 48325)
StateTexas (FIPS 48)
Metro Area (MSA)San Antonio-New Braunfels, TX Metro Area (41700)
Census Region / DivisionSouth Region · West South Central Division
Coordinates29.501131, -98.85359
Land / Water Area25.547 mi² land · 0.13 mi² water

02Income & Economics

Distribution of the 350 individual tax returns filed in 78066 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
20.0%
$25K–$50K
17.1%
$50K–$75K
11.4%
$75K–$100K
14.3%
$100K–$200K
28.6%
$200K+
8.6%
The $200,000+ bracket accounts for 34% of 78066's total adjusted gross income, from 9% of returns — a concentration that drives the gap between the median ($77,500) and the average.
Estimated median = median adjusted gross income per tax return, interpolated from IRS SOI brackets. Differs from U.S. Census household income.

03Income Over Time

Year-over-year change in 78066's IRS income metrics, 2020–2022.

Median income (2021→2022)
$77,500
▲ 10.7%
Filers earning $200K+
8.6%
▼ 0.3 pt
Total filers
350
▲ 2.9%
GET /zipc/v2/zipcodes/78066/soi?year=… $65K 2020 $70K 2021 $78K 2022
Median = adjusted gross income per return, interpolated from IRS SOI brackets. Figures are nominal (not inflation-adjusted).

04Population Trend

Decennial U.S. Census population for the 78066 ZCTA.

2000
432
 
2010
591
▲ +36.8%
2020
650
▲ +10.0%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortC
USPS Finance Number487610
City AliasesRio Medina

06Frequently Asked Questions

What county is ZIP code 78066 in?

ZIP code 78066 is in Medina County, Texas (county FIPS code 48325).

What city is ZIP code 78066?

The primary USPS city for 78066 is Rio Medina, TX.

What metro area (MSA) is 78066 in?

78066 is part of the San Antonio-New Braunfels, TX Metro Area (MSA code 41700).

What is the population of ZIP code 78066?

The 2020 Census population of 78066 was 650 residents.

What is the median income in ZIP code 78066?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 78066 is about $77,500, with around 9% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.