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Pennsylvania ZIP Codes
Northumberland County
Northumberland, PA
17857
17857 ZIP Code — Northumberland, PA
Northumberland County, Pennsylvania
ZIP code 17857 is located in
Northumberland ,
Pennsylvania ,
within Northumberland County .
It covers approximately 26.66 square miles and serves a population of
7,708 residents.
This is a standard ZIP code in the Eastern (ET) timezone,
served by area code 570/272 .
About ZIP code 17857
The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $171,200. Owner-occupancy is high at 78%, well above the national average.
Median household income is $66,672. 43% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 24 minutes is near the national average.
Educational attainment is near the national average, with 22% of residents holding a bachelor's degree or higher.
Overall, ZIP code 17857 reflects a community defined by high homeownership and a significant Social Security-dependent population.
17857 ZIP code map
View map of 17857
Cities in ZIP code 17857
Below are the cities the US Postal Service accepts for ZIP code 17857. Using any city not on this list may result in mail delivery delays.
Nearby ZIP codes
Demographics
updated 06/2026
Population
Total population
7,708
Population density
289 / sq mi
State FIPS
42
County FIPS
097
Geography
Land area
26.66 sq mi
Water area
2.35 sq mi
Latitude
40.9241
Longitude
-76.7540
Timezone
Eastern (ET)
Area code
570/272
Economics
updated 06/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
42.9%
50.8%
39.8%
$50k – $100k
35.4%
30.7%
30.8%
$100k – $200k
17.9%
16.2%
22.4%
Over $200k
3.7%
2.3%
7.1%
Demographics & statistics
$66,672
Median household income
$171,200
Median home value
22.1%
Bachelor's or higher
Age distribution
Age summary
Group Count % Under 18 1,338 17.4% 18 and over 6,370 82.6% 65 and over 2,242 29.1% Median age 51.6 years
Race & ethnicity
Black or African American
2.7%
Group Count % White 7,248 92.3% Black or African American 208 2.7% Two or more races 175 2.2% Hispanic or Latino 141 1.8% Other race 77 1%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
42.9%
50.8%
39.8%
$50k – $100k
35.4%
30.7%
30.8%
$100k – $200k
17.9%
16.2%
22.4%
Over $200k
3.7%
2.3%
7.1%
Range % of households Under $10k 3.7% $10k–$15k 2.8% $15k–$25k 10.1% $25k–$35k 8.8% $35k–$50k 12.4% $50k–$75k 17.7% $75k–$100k 18.5% $100k–$150k 15.9% $150k–$200k 5.3% $200k+ 4.7% Median income $66,672
Housing
Housing overview
Metric Value Median home value $171,200 Median rent / month $874 Owner occupied 77.5% Renter occupied 22.5% Vacant 7.9% Single-family detached 70.1% Large apartment buildings 2.4% Mobile homes 5.4% Median rooms 6.3 Avg household size (owned) 2.19
Year built
Era % 2020 or later 0.0% 2010–2019 2.3% 2000–2009 5.7% 1990–1999 11.5% 1980–1989 9.5% 1970–1979 13.6% 1960–1969 13.8% 1950–1959 10.1% 1940–1949 7.5% 1939 or earlier 26.0%
Bedrooms
Size % of units No bedroom (studio) 0.0% 1 bedroom 10.9% 2 bedrooms 23.6% 3 bedrooms 44.2% 4 bedrooms 15.9% 5+ bedrooms 5.4%
Vehicles per household
Vehicles % of households No vehicle 3.6% 1 vehicle 38.0% 2 vehicles 38.5% 3 or more 19.8%
Heating fuel
Fuel type % Utility gas 37.0% Electricity 36.8% Propane / LP gas 4.2% Fuel oil 17.7% Wood 1.3% No fuel used 0.2%
Households & families
Household type Count % Married-couple family 1,693 48.4% Cohabiting couple 262 7.5% Male householder, no spouse 551 15.7% Female householder, no spouse 993 28.4% Households with children under 18 751 21.5% Households with seniors (65+) 1,523 43.5% Average household size 2.14
Marital status
Status Male Female Never married 25.3% 15.9% Married 56.3% 51.4% Separated 1.3% 1.8% Widowed 5.9% 14.7% Divorced 11.1% 16.1%
Education
Some college, no degree
15.8%
Graduate / professional
10.6%
Metric % HS diploma or higher 92.2% Bachelor's or higher 22.1%
School enrollment (ages 3–17)
Type Count % Nursery / preschool 78 5.5% Kindergarten 27 1.9% Elementary school 901 63.5% High school 269 19.0% College / grad school 143 10.1%
Employment
Industry of employment
Education & healthcare
26.8%
Arts, food & hospitality
9.6%
Transportation & utilities
8.7%
Professional & management
6.4%
Public administration
3.3%
Finance & real estate
3.2%
Agriculture & mining
1.3%
Occupation
Category % Management, business & arts 33.6% Service 15.7% Sales & office 20.4% Natural resources & construction 7.0% Production & transportation 23.3%
Employment type
Type % Private sector 80.3% Government 11.3% Self-employed 8.4% Unpaid family workers 0.0%
Commute
Method % Drive alone 82.5% Carpool 6.3% Public transit 1.2% Walk 1.1% Work from home 8.0% Other means 0.9% Avg commute (minutes) 23.6
Poverty
Married-couple families
1.7%
Female-led households
28.4%
Income support
Source % of households Social Security 43.2% Retirement income 29.6% Supplemental Security 3.4% Cash public assistance 1.0% Food stamps / SNAP 9.4%
Health indicators
Condition % Obesity 34.2% High blood pressure 35.3% High cholesterol 35.0% Diabetes 10.9% Heart disease 7.9% Stroke 3.5% Asthma 9.9% Arthritis 32.2% Kidney disease 3.2% Pulmonary disease 8.4% Cancer 8.2%
Behavior / access % Smoking 18.8% Binge drinking 17.7% No physical activity 23.9% Less than 7 hrs sleep 35.4% Depression 22.8% Fair or poor health 15.1% Poor mental health 15.0% Poor physical health 11.2% No health insurance 10.2% Visited doctor (checkup) 79.5% Visited dentist 64.1% Cholesterol screening 90.4% Teeth loss 15.1%
Veterans & disability
Veterans Count % Civilian veterans 454 7.1%
Disability % Any disability 17.1% Under 18 3.0% 18–64 years 14.7% 65 and over 30.9%
Health insurance coverage
Type % Private insurance 75.0% Public insurance 43.3% No insurance 2.9% Uninsured under 19 1.6%
Language & origin
Language spoken at home (age 5+)
Language Count % English only 7,522 97.6% Spanish 39 0.5% Other Indo-European 6 0.1% Asian & Pacific Islander 33 0.4% Other languages 0 0.0%
Place of birth & citizenship
Origin Count % Native born (US) 7,639 99.1% Born in same state 7,603 98.6% Born in different state 6,825 88.5% Foreign born 36 0.5% Naturalized citizen 69 0.9% Not a US citizen 40 58.0%
Ancestry
Ancestry Count % French 827 10.7% Italian 669 8.7% Arab 454 5.9%
Ancestry Count % English 339 4.4% Irish 33 0.4% Norwegian 24 0.3%
Technology access
Metric % of households Computer access 45.4% Internet access 85.8%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 17857
What city is ZIP code 17857 in?
ZIP code 17857 is primarily assigned to Northumberland, Pennsylvania.
What county is ZIP code 17857 in?
ZIP code 17857 falls within Northumberland County, Pennsylvania.
Does ZIP code 17857 have an older population?
29% of residents in ZIP code 17857 are 65 or older, above the national average of ~17%.
Does ZIP code 17857 have a large retiree population?
43% of households in ZIP code 17857 receive Social Security income, suggesting a significant retiree or disability population.
What is the typical home value in ZIP code 17857?
The median home value in ZIP code 17857 is $171,200.
What is the population of ZIP code 17857?
ZIP code 17857 has an estimated population of 7,708 residents, with a density of 289 people per square mile.
What timezone is ZIP code 17857 in?
ZIP code 17857 observes the EST timezone.
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