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US ZIP Code Profile

ZIP Code 78536
Delmita, Texas

ZIP code 78536 is in Delmita, located in Starr County, Texas, within the Rio Grande City metro area. Its 2020 Census population was 322. The estimated median adjusted gross income per tax return is $31,250.

2020 Population
322
Census ZCTA
County
Starr
FIPS 48427
Median income (est.)
$31,250
IRS SOI 2022
Land Area
59.629 mi²
+ 0 mi² water

01Location & Geography

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

Primary CityDelmita, TX
CountyStarr County (FIPS 48427)
StateTexas (FIPS 48)
Metro Area (MSA)Rio Grande City, TX Micro Area (40100)
Census Region / DivisionSouth Region · West South Central Division
Coordinates26.649282, -98.451126
Land / Water Area59.629 mi² land · 0 mi² water

02Income & Economics

Distribution of the 120 individual tax returns filed in 78536 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
41.7%
$25K–$50K
33.3%
$50K–$75K
25.0%
$75K–$100K
0.0%
$100K–$200K
0.0%
$200K+
0.0%
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 78536's IRS income metrics, 2020–2022.

Median income (2021→2022)
$31,250
▲ 36.4%
Filers earning $200K+
0.0%
▲ 0.0 pt
Total filers
120
▲ 9.1%
GET /zipc/v2/zipcodes/78536/soi?year=… $25K 2020 $23K 2021 $31K 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 78536 ZCTA.

2010
451
 
2020
322
▼ -28.6%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortC
USPS Finance Number482360
City AliasesDelmita, El Centro, La Reforma

06Frequently Asked Questions

What county is ZIP code 78536 in?

ZIP code 78536 is in Starr County, Texas (county FIPS code 48427).

What city is ZIP code 78536?

The primary USPS city for 78536 is Delmita, TX.

What metro area (MSA) is 78536 in?

78536 is part of the Rio Grande City, TX Micro Area (MSA code 40100).

What is the population of ZIP code 78536?

The 2020 Census population of 78536 was 322 residents.

What is the median income in ZIP code 78536?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 78536 is about $31,250. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.