Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/LA/WELSH

Welsh ZIP code, Louisiana

The ZIP code for Welsh, LA is 70591, and its area code is 337.

USPS city name
1 ZIP code
Population
3,313
Area code
337

Welsh in numbers

About 3,313 people live in Welsh, in 1,143 households. The median household income is $78,185 a year, 29% above the Louisiana median of $60,756 (US: $80,734). The median owner-occupied home is valued at $174,900 (19% below the Louisiana median), and median gross rent is $576 a month. The median age is 38.2; 11.3% of adults 25 and over hold a bachelor's degree or higher (27.0% across Louisiana); the average commute takes 32 minutes.

Population3,313Welsh3,313
Households1,143Welsh1,143
Median age38.2Welsh38.2Louisiana38.0US 38.9
Median household income$78,185Welsh$78,185Louisiana$60,756US $80,734
Median home value$174,900Welsh$174,900Louisiana$216,500US $332,700
Median gross rent$576Welsh$576Louisiana$1,064US $1,413
Bachelor's degree or higher11.3%Welsh11.3%Louisiana27.0%US 35.7%
Mean commute32.3 minWelsh32.3 minLouisiana25.7 minUS 26.4 min
Population density524 / sq miWelsh524 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Welsh town. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Welsh

ZIP codes with the USPS city name Welsh
ZIP City Type Population Median income Median home
70591 Welsh , LA Standard 5,983 $78,393 $159,100

Map of Welsh ZIP codes

70591

The ZIP codes of Welsh, LA, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Welsh

The nearest larger towns are Jennings (9,553 people, 9.2 mi), Lake Charles (81,143 people, 24 mi) and Moss Bluff (12,482 people, 24 mi).

Towns near Welsh
TownPopulationDistance
Jennings 9,553 9.2 mi
Iowa 3,200 12.0 mi
Lake Arthur 2,585 13.4 mi
Lake Charles 81,143 23.9 mi
Moss Bluff 12,482 24.1 mi
Crowley 11,422 26.1 mi
Westlake 4,743 27.0 mi
Prien 7,119 28.2 mi
Eunice 9,239 29.3 mi

More nearby: every ZIP code in Jefferson Davis Parish · Louisiana ZIP codes

Cite this page

zipcodes.pro. “Welsh, LA ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/la/welsh

Underlying data is public domain or openly licensed — sources, vintages and licences.