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/PA/SOUTH-WILLIAMSPORT

South Williamsport ZIP codes, Pennsylvania

No ZIP code is named for South Williamsport, PA; addresses there use a neighbouring town's name. The ZIP code covering it is 17702. Its area codes are 570 and 272.

USPS city name
0 ZIP codes
Overlapping the city
1 more
Population
6,211
Area codes
570, 272

NANPA lists no telephone rate centre for South Williamsport itself, so these are the area codes of the nearest one, Williamsport (0.0 miles). A town on an area-code boundary can differ from its neighbour.

South Williamsport in numbers

About 6,211 people live in South Williamsport, in 2,665 households. The median household income is $64,583 a year, 17% below the Pennsylvania median of $77,971 (US: $80,734). The median owner-occupied home is valued at $180,800 (29% below the Pennsylvania median), and median gross rent is $1,067 a month. The median age is 43.0; 29.2% of adults 25 and over hold a bachelor's degree or higher (35.2% across Pennsylvania); the average commute takes 18 minutes.

Population6,211South Williamsport6,211
Households2,665South Williamsport2,665
Median age43.0South Williamsport43.0Pennsylvania40.9US 38.9
Median household income$64,583South Williamsport$64,583Pennsylvania$77,971US $80,734
Median home value$180,800South Williamsport$180,800Pennsylvania$254,500US $332,700
Median gross rent$1,067South Williamsport$1,067Pennsylvania$1,209US $1,413
Bachelor's degree or higher29.2%South Williamsport29.2%Pennsylvania35.2%US 35.7%
Mean commute18.4 minSouth Williamsport18.4 minPennsylvania26.3 minUS 26.4 min
Population density3,271 / sq miSouth Williamsport3,271 / sq mi

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

ZIP codes covering South Williamsport

These ZIP codes cover part of South Williamsport but are addressed as somewhere else.

ZIP codes overlapping South Williamsport
ZIP City Type Population Median income Median home
17702 Williamsport , PA Standard 10,488 $70,210 $196,900

Map of South Williamsport ZIP codes

17702

The ZIP codes of South Williamsport, PA, 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 South Williamsport

The nearest larger towns are Williamsport (27,612 people, 2.0 mi), Milton (6,534 people, 18 mi) and Lock Haven (8,447 people, 24 mi).

Towns near South Williamsport
TownPopulationDistance
Williamsport 27,612 2.0 mi
Kenmar 5,077 2.9 mi
Garden View 2,637 3.1 mi
Montoursville 4,706 4.5 mi
Muncy 2,720 11.3 mi
Jersey Shore 4,121 14.0 mi
Milton 6,534 17.5 mi
Lewisburg 5,257 19.2 mi
Mifflinburg 3,473 21.5 mi
Lock Haven 8,447 24.4 mi
Northumberland 3,866 25.4 mi
Danville 4,217 27.4 mi
Sunbury 9,617 27.8 mi

More nearby: every ZIP code in Lycoming County · Pennsylvania ZIP codes

Cite this page

zipcodes.pro. “South Williamsport, PA ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/pa/south-williamsport

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