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

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zipcodes.pro — STATE/PA/COUNTY/NORTHUMBERLAND

Northumberland County, PA ZIP codes

There are 23 ZIP codes in Northumberland County, PA, in 23 towns, from 17017 to 17881. The largest are 17801 (Sunbury), 17847 (Milton) and 17872 (Shamokin). 1 more crosses into it from a neighbouring county: 17821.

The county seat is Sunbury.

ZIP codes
23
Partly in it
1 more
Towns
23
County seat
Sunbury
County FIPS
42097
Population
90,560
Median household income
$60,583
Land area
458 sq mi
Area codes
272, 570
Metro area
Sunbury

Northumberland County ZIP codes by town

Sunbury (county seat)
17801

Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.

ZIP codes partly in Northumberland County

This ZIP code lies mostly in a neighbouring county but covers a twentieth or more of Northumberland County.

Map of Northumberland County ZIP codes

1701717730177491777717801178231783017832178341783617840178471785017851178571786017865178661786717868178721787717881

The ZIP codes of Northumberland County, 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.

Northumberland County in numbers

About 90,560 people live in Northumberland County, in 37,886 households, the 32nd most populous of Pennsylvania's 67 counties. The median household income is $60,583 a year, 22% below the Pennsylvania median of $77,971 (US: $80,734). The median owner-occupied home is valued at $162,400 (36% below the Pennsylvania median), and median gross rent is $806 a month. The median age is 44.5; 19.4% of adults 25 and over hold a bachelor's degree or higher (35.2% across Pennsylvania); the average commute takes 25 minutes.

Population90,560Northumberland90,560
Households37,886Northumberland37,886
Median age44.5Northumberland44.5Pennsylvania40.9US 38.9
Median household income$60,583Northumberland$60,583Pennsylvania$77,971US $80,734
Median home value$162,400Northumberland$162,400Pennsylvania$254,500US $332,700
Median gross rent$806Northumberland$806Pennsylvania$1,209US $1,413
Bachelor's degree or higher19.4%Northumberland19.4%Pennsylvania35.2%US 35.7%
Mean commute25.2 minNorthumberland25.2 minPennsylvania26.3 minUS 26.4 min
Population density198 / sq miNorthumberland198 / sq mi

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

Largest towns in Northumberland County

Largest towns in Northumberland County
TownZIP codesPopulation
Coal Township 1 9,769
Sunbury 1 9,617
Shamokin 1 6,853
Milton 1 6,534
Mount Carmel 1 5,677
Northumberland 1 3,866
Kulpmont 1 2,724
Paxinos 1 2,332
Watsontown 1 2,005
Riverside 1 1,806
Trevorton 1 1,775
Dornsife 1 1,258
Dewart 1 1,247
Montandon 1 831
Marion Heights 1 578

Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.

Neighbouring counties

Counties that share a ZIP code with Northumberland County.

Not sure you are in Northumberland County? What county am I in? answers from your location, near a county line included.

Every ZIP code in Northumberland County, with figures

ZIP codes in Northumberland County
ZIP City Type Population Median income Median home
17017 Dalmatia , PA Standard 1,509 $82,396 $216,600
17730 Dewart , PA Standard 11 — —
17749 Mc Ewensville , PA Standard 234 $74,500 $196,900
17777 Watsontown , PA Standard 7,030 $67,188 $216,800
17801 Sunbury , PA Standard 16,429 $60,664 $153,500
17823 Dornsife , PA Standard 1,258 $78,864 $232,100
17830 Herndon , PA Standard 1,938 $73,942 $194,600
17832 Marion Heights , PA Standard 578 $52,569 $89,800
17834 Kulpmont , PA Standard 3,480 $56,167 $94,000
17836 Leck Kill , PA Standard 190 $91,250 $137,500
17840 Locust Gap , PA Standard 188 — —
17847 Milton , PA Standard 11,260 $58,775 $197,100
17850 Montandon , PA Standard 576 $51,429 $84,600
17851 Mount Carmel , PA Standard 7,234 $53,637 $79,300
17857 Northumberland , PA Standard 7,671 $67,298 $202,200
17860 Paxinos , PA Standard 2,332 $92,000 $275,800
17865 Potts Grove , PA Standard 24 $37,083 $145,800
17866 Coal Township , PA Standard 9,769 $51,010 $88,300
17867 Rebuck , PA Standard 239 $75,833 $177,500
17868 Riverside , PA Standard 719 $76,250 $247,200
17872 Shamokin , PA Standard 8,894 $48,750 $81,800
17877 Snydertown , PA No street area — — —
17881 Trevorton , PA Standard 1,479 $54,122 $120,000

Cite this page

zipcodes.pro. “Northumberland County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/pa/county/northumberland

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