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US ZIP Code Profile

ZIP Code 77983
Seadrift, Texas

ZIP code 77983 is in Seadrift, located in Calhoun County, Texas, within the Port Lavaca metro area. Its 2020 Census population was 1,732. The estimated median adjusted gross income per tax return is $44,643, and about 4% of filers report $200,000 or more.

2020 Population
1,732
Census ZCTA
County
Calhoun
FIPS 48057
Median income (est.)
$44,643
IRS SOI 2022
Land Area
112.855 mi²
+ 24.186 mi² water

01Location & Geography

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

Primary CitySeadrift, TX
CountyCalhoun County (FIPS 48057)
StateTexas (FIPS 48)
Metro Area (MSA)Port Lavaca, TX Micro Area (38920)
Census Region / DivisionSouth Region · West South Central Division
Coordinates28.44172, -96.579575
Land / Water Area112.855 mi² land · 24.186 mi² water

02Income & Economics

Distribution of the 910 individual tax returns filed in 77983 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
31.9%
$25K–$50K
23.1%
$50K–$75K
15.4%
$75K–$100K
8.8%
$100K–$200K
16.5%
$200K+
4.4%
The $200,000+ bracket accounts for 27% of 77983's total adjusted gross income, from 4% of returns — a concentration that drives the gap between the median ($44,643) 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 77983's IRS income metrics, 2020–2022.

Median income (2021→2022)
$44,643
▲ 2.0%
Filers earning $200K+
4.4%
▲ 1.0 pt
Total filers
910
▲ 3.4%
GET /zipc/v2/zipcodes/77983/soi?year=… $41K 2020 $44K 2021 $45K 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 77983 ZCTA.

2000
2,111
 
2010
2,209
▲ +4.6%
2020
1,732
▼ -21.6%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortC
USPS Finance Number488195
City AliasesSeadrift

06Frequently Asked Questions

What county is ZIP code 77983 in?

ZIP code 77983 is in Calhoun County, Texas (county FIPS code 48057).

What city is ZIP code 77983?

The primary USPS city for 77983 is Seadrift, TX.

What metro area (MSA) is 77983 in?

77983 is part of the Port Lavaca, TX Micro Area (MSA code 38920).

What is the population of ZIP code 77983?

The 2020 Census population of 77983 was 1,732 residents.

What is the median income in ZIP code 77983?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 77983 is about $44,643, with around 4% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.