01Location & Geography
Authoritative geographic identifiers from the U.S. Census Bureau, ANSI, and FIPS standards.
| Primary City | Port Mansfield, TX |
|---|---|
| County | Willacy County (FIPS 48489) |
| State | Texas (FIPS 48) |
| Metro Area (MSA) | Raymondville, TX Micro Area (39700) |
| Census Region / Division | South Region · West South Central Division |
| Coordinates | 26.569407, -97.44239 |
| Land / Water Area | 5.647 mi² land · 1.466 mi² water |
02Income & Economics
Distribution of the 160 individual tax returns filed in 78598 by adjusted gross income bracket (IRS SOI, 2022).
03Income Over Time
Year-over-year change in 78598's IRS income metrics, 2020–2022.
04Population Trend
Decennial U.S. Census population for the 78598 ZCTA.
05USPS Postal Details
Delivery and facility attributes from the monthly USPS dataset.
| ZIP Classification | PO Box Zip |
|---|---|
| Facility Type | Non-Postal Community Name, former postal facility or place name |
| Carrier Route Sort | C |
| USPS Finance Number | 487470 |
| City Aliases | Prt Mansfield, Raymondville, Port Mansfield |
06Frequently Asked Questions
What county is ZIP code 78598 in?
ZIP code 78598 is in Willacy County, Texas (county FIPS code 48489).
What city is ZIP code 78598?
The primary USPS city for 78598 is Port Mansfield, TX.
What metro area (MSA) is 78598 in?
78598 is part of the Raymondville, TX Micro Area (MSA code 39700).
What is the population of ZIP code 78598?
The 2020 Census population of 78598 was 319 residents.
What is the median income in ZIP code 78598?
Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 78598 is about $41,667. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.