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US ZIP Code Profile

ZIP Code 78597
South Padre Island, Texas

ZIP code 78597 is in South Padre Island, located in Cameron County, Texas, within the Brownsville-Harlingen metro area. Its 2020 Census population was 2,479. The estimated median adjusted gross income per tax return is $54,167, and about 13% of filers report $200,000 or more.

2020 Population
2,479
Census ZCTA
County
Cameron
FIPS 48061
Median income (est.)
$54,167
IRS SOI 2022
Land Area
9.005 mi²
+ 121.905 mi² water

01Location & Geography

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

Primary CitySouth Padre Island, TX
CountyCameron County (FIPS 48061)
StateTexas (FIPS 48)
Metro Area (MSA)Brownsville-Harlingen, TX Metro Area (15180)
Census Region / DivisionSouth Region · West South Central Division
Coordinates26.280733, -97.284164
Land / Water Area9.005 mi² land · 121.905 mi² water

02Income & Economics

Distribution of the 1,310 individual tax returns filed in 78597 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
29.0%
$25K–$50K
19.1%
$50K–$75K
11.5%
$75K–$100K
8.4%
$100K–$200K
19.1%
$200K+
13.0%
The $200,000+ bracket accounts for 58% of 78597's total adjusted gross income, from 13% of returns — a concentration that drives the gap between the median ($54,167) 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 78597's IRS income metrics, 2020–2022.

Median income (2021→2022)
$54,167
▼ 1.5%
Filers earning $200K+
13.0%
▼ 2.9 pt
Total filers
1,310
▼ 0.8%
GET /zipc/v2/zipcodes/78597/soi?year=… $49K 2020 $55K 2021 $54K 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 78597 ZCTA.

2000
2,836
 
2010
2,885
▲ +1.7%
2020
2,479
▼ -14.1%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypeBranch
Carrier Route SortC
USPS Finance Number487210
City AliasesSouth Padre Island, S Padre Isle

06Frequently Asked Questions

What county is ZIP code 78597 in?

ZIP code 78597 is in Cameron County, Texas (county FIPS code 48061).

What city is ZIP code 78597?

The primary USPS city for 78597 is South Padre Island, TX.

What metro area (MSA) is 78597 in?

78597 is part of the Brownsville-Harlingen, TX Metro Area (MSA code 15180).

What is the population of ZIP code 78597?

The 2020 Census population of 78597 was 2,479 residents.

What is the median income in ZIP code 78597?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 78597 is about $54,167, with around 13% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.