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US ZIP Code Profile

ZIP Code 78071
Three Rivers, Texas

ZIP code 78071 is in Three Rivers, located in Live Oak County, Texas. Its 2020 Census population was 4,124. The estimated median adjusted gross income per tax return is $48,106, and about 6% of filers report $200,000 or more.

2020 Population
4,124
Census ZCTA
County
Live Oak
FIPS 48297
Median income (est.)
$48,106
IRS SOI 2022
Land Area
358.917 mi²
+ 18.694 mi² water

01Location & Geography

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

Primary CityThree Rivers, TX
CountyLive Oak County (FIPS 48297)
StateTexas (FIPS 48)
Census Region / DivisionSouth Region · West South Central Division
Coordinates28.470282, -98.226395
Land / Water Area358.917 mi² land · 18.694 mi² water

02Income & Economics

Distribution of the 1,430 individual tax returns filed in 78071 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
28.7%
$25K–$50K
23.1%
$50K–$75K
14.0%
$75K–$100K
10.5%
$100K–$200K
18.2%
$200K+
5.6%
The $200,000+ bracket accounts for 35% of 78071's total adjusted gross income, from 6% of returns — a concentration that drives the gap between the median ($48,106) 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 78071's IRS income metrics, 2020–2022.

Median income (2021→2022)
$48,106
▲ 10.9%
Filers earning $200K+
5.6%
▲ 1.3 pt
Total filers
1,430
▲ 1.4%
GET /zipc/v2/zipcodes/78071/soi?year=… $38K 2020 $43K 2021 $48K 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 78071 ZCTA.

2000
4,849
 
2010
4,248
▼ -12.4%
2020
4,124
▼ -2.9%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortD
USPS Finance Number488995
City AliasesThree Rivers

06Frequently Asked Questions

What county is ZIP code 78071 in?

ZIP code 78071 is in Live Oak County, Texas (county FIPS code 48297).

What city is ZIP code 78071?

The primary USPS city for 78071 is Three Rivers, TX.

What is the population of ZIP code 78071?

The 2020 Census population of 78071 was 4,124 residents.

What is the median income in ZIP code 78071?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 78071 is about $48,106, with around 6% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.