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/SD/NEW-UNDERWOOD

New Underwood ZIP code, South Dakota

The ZIP code for New Underwood, SD is 57761, and its area code is 605.

USPS city name
1 ZIP code
Population
509
Area code
605

New Underwood in numbers

About 509 people live in New Underwood, in 151 households. The median household income is $56,250 a year, 25% below the South Dakota median of $75,081 (US: $80,734). The median owner-occupied home is valued at $193,800 (25% below the South Dakota median), and median gross rent is $850 a month. The median age is 46.6; 10.4% of adults 25 and over hold a bachelor's degree or higher (31.9% across South Dakota); the average commute takes 27 minutes.

Population509New Underwood509
Households151New Underwood151
Median age46.6New Underwood46.6South Dakota38.0US 38.9
Median household income$56,250New Underwood$56,250South Dakota$75,081US $80,734
Median home value$193,800New Underwood$193,800South Dakota$257,400US $332,700
Median gross rent$850New Underwood$850South Dakota$946US $1,413
Bachelor's degree or higher10.4%New Underwood10.4%South Dakota31.9%US 35.7%
Mean commute26.9 minNew Underwood26.9 minSouth Dakota17.8 minUS 26.4 min
Population density351 / sq miNew Underwood351 / sq mi

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

ZIP codes addressed as New Underwood

ZIP codes with the USPS city name New Underwood
ZIP City Type Population Median income Median home
57761 New Underwood , SD Standard 1,180 $97,734 $253,100

Map of New Underwood ZIP codes

57761

The ZIP codes of New Underwood, SD, 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 New Underwood

The nearest larger towns are Box Elder (12,902 people, 12 mi), Green Valley (1,642 people, 14 mi) and Rapid Valley (6,975 people, 14 mi).

Towns near New Underwood
TownPopulationDistance
Box Elder 12,902 12.0 mi
Rapid Valley 6,975 14.2 mi
Rapid City 77,946 18.8 mi
Colonial Pine Hills 2,609 24.3 mi
Blackhawk 2,934 24.8 mi
Summerset 3,022 25.7 mi

More nearby: every ZIP code in Meade County · South Dakota ZIP codes

Cite this page

zipcodes.pro. “New Underwood, SD ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/sd/new-underwood

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