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Pennsylvania ZIP Codes
Northumberland County
Mount Carmel, PA
17851
17851 ZIP Code — Mount Carmel, PA
Northumberland County, Pennsylvania
ZIP code 17851 is located in
Mount Carmel ,
Pennsylvania ,
within Northumberland County .
It covers approximately 14.99 square miles and serves a population of
7,232 residents.
This is a standard ZIP code in the Eastern (ET) timezone,
served by area code 570/272 .
About ZIP code 17851
The housing stock consists of a mix of housing types. Most homes were built in the pre-1940, giving the area an established character. Median home value is $62,800. Owner-occupancy sits near the national average at 72%.
Median household income is $48,287. SNAP benefit usage at 26% of households reflects economic stress in the area. 47% 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 23 minutes is near the national average.
College attainment at 13% is below the national average, consistent with a trades and production-oriented local economy.
Health indicators show elevated rates of smoking (23%) compared to national benchmarks.
Notable community characteristics include disability rates above the national average at 23%.
Overall, ZIP code 17851 reflects a community defined by a trades-oriented workforce, a significant Social Security-dependent population, and elevated reliance on food assistance.
17851 ZIP code map
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Cities in ZIP code 17851
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Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
7,232
Population density
482 / sq mi
State FIPS
42
County FIPS
097
Geography
Land area
14.99 sq mi
Water area
0.14 sq mi
Latitude
40.7942
Longitude
-76.4355
Timezone
Eastern (ET)
Area code
570/272
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
60.4%
50.8%
39.8%
$50k – $100k
31.7%
30.7%
30.8%
$100k – $200k
7.9%
16.2%
22.4%
Over $200k
0.0%
2.3%
7.1%
Demographics & statistics
$48,287
Median household income
13.2%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 1,299 18.0%
18 and over 5,933 82.0%
65 and over 1,589 22.0%
Median age 44.6 years
Race & ethnicity
Black or African American
1.6%
Group Count %
White 6,753 89.7%
Hispanic or Latino 296 3.9%
Two or more races 275 3.7%
Black or African American 121 1.6%
Other race 53 0.7%
Asian 30 0.4%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
60.4%
50.8%
39.8%
$50k – $100k
31.7%
30.7%
30.8%
$100k – $200k
7.9%
16.2%
22.4%
Over $200k
0.0%
2.3%
7.1%
Range % of households
Under $10k 7.1%
$10k–$15k 4.9%
$15k–$25k 17.1%
$25k–$35k 7.5%
$35k–$50k 15.8%
$50k–$75k 15.0%
$75k–$100k 15.7%
$100k–$150k 14.4%
$150k–$200k 2.4%
Median income $48,287
Housing
Housing overview
Metric Value
Median home value $62,800
Median rent / month $765
Owner occupied 72.4%
Renter occupied 27.6%
Vacant 22.1%
Single-family detached 35.1%
Large apartment buildings 3.2%
Mobile homes 1.1%
Median rooms 6.2
Avg household size (owned) 2.30
Year built
Era %
2020 or later 0.0%
2010–2019 1.9%
2000–2009 1.5%
1990–1999 1.9%
1980–1989 7.3%
1970–1979 5.7%
1960–1969 3.8%
1950–1959 8.8%
1940–1949 10.9%
1939 or earlier 58.3%
Bedrooms
Size % of units
No bedroom (studio) 1.1%
1 bedroom 9.3%
2 bedrooms 26.5%
3 bedrooms 43.1%
4 bedrooms 14.7%
5+ bedrooms 5.3%
Vehicles per household
Vehicles % of households
No vehicle 13.0%
1 vehicle 43.7%
2 vehicles 23.7%
3 or more 19.6%
Heating fuel
Fuel type %
Utility gas 30.7%
Electricity 20.7%
Propane / LP gas 3.1%
Fuel oil 37.2%
Wood 0.3%
No fuel used 0.3%
Households & families
Household type Count %
Married-couple family 1,180 38.8%
Cohabiting couple 202 6.6%
Male householder, no spouse 688 22.6%
Female householder, no spouse 970 31.9%
Households with children under 18 749 24.6%
Households with seniors (65+) 1,192 39.2%
Average household size 2.33
Marital status
Status Male Female
Never married 39.1% 29.4%
Married 43.5% 43.1%
Separated 1.0% 1.2%
Widowed 4.0% 12.1%
Divorced 12.5% 14.2%
Education
Some college, no degree
15.5%
Graduate / professional
4.4%
Metric %
HS diploma or higher 88.1%
Bachelor's or higher 13.2%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 1 0.1%
Kindergarten 33 2.7%
Elementary school 576 46.6%
High school 399 32.3%
College / grad school 228 18.4%
Employment
Industry of employment
Education & healthcare
36.5%
Arts, food & hospitality
6.0%
Professional & management
5.7%
Transportation & utilities
3.9%
Finance & real estate
3.8%
Public administration
3.7%
Agriculture & mining
1.4%
Occupation
Category %
Management, business & arts 30.7%
Service 21.6%
Sales & office 13.8%
Natural resources & construction 6.7%
Production & transportation 27.3%
Employment type
Type %
Private sector 83.1%
Government 12.9%
Self-employed 4.0%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 76.4%
Carpool 10.4%
Public transit 0.1%
Walk 5.2%
Work from home 5.9%
Other means 2.1%
Avg commute (minutes) 22.5
Poverty
Married-couple families
3.8%
Female-led households
51.2%
Income support
Source % of households
Social Security 46.6%
Retirement income 30.3%
Supplemental Security 6.3%
Cash public assistance 5.8%
Food stamps / SNAP 26.2%
Health indicators
Condition %
Obesity 36.6%
High blood pressure 38.3%
High cholesterol 36.6%
Diabetes 12.7%
Heart disease 9.3%
Stroke 4.3%
Asthma 10.6%
Arthritis 35.1%
Kidney disease 3.8%
Pulmonary disease 10.7%
Cancer 8.4%
Behavior / access %
Smoking 22.9%
Binge drinking 16.9%
No physical activity 28.6%
Less than 7 hrs sleep 37.2%
Depression 24.2%
Fair or poor health 19.2%
Poor mental health 16.5%
Poor physical health 13.6%
No health insurance 12.1%
Visited doctor (checkup) 79.6%
Visited dentist 57.5%
Cholesterol screening 88.8%
Teeth loss 20.3%
Veterans & disability
Veterans Count %
Civilian veterans 529 8.9%
Disability %
Any disability 22.8%
Under 18 8.9%
18–64 years 22.5%
65 and over 35.8%
Health insurance coverage
Type %
Private insurance 58.9%
Public insurance 56.0%
No insurance 3.3%
Uninsured under 19 1.5%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 6,905 95.5%
Spanish 115 1.7%
Other Indo-European 94 1.4%
Asian & Pacific Islander 21 0.3%
Other languages 0 0.0%
Place of birth & citizenship
Origin Count %
Native born (US) 7,059 97.6%
Born in same state 7,033 97.2%
Born in different state 6,177 85.4%
Foreign born 26 0.4%
Naturalized citizen 173 2.4%
Not a US citizen 63 36.4%
Ancestry
Ancestry Count %
Italian 1,296 17.9%
French 409 5.7%
Arab 330 4.6%
Ancestry Count %
Norwegian 201 2.8%
English 164 2.3%
Irish 25 0.3%
Technology access
Metric % of households
Computer access 42.0%
Internet access 80.2%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 17851
What city is ZIP code 17851 in?
ZIP code 17851 is primarily assigned to Mount Carmel, Pennsylvania.
What county is ZIP code 17851 in?
ZIP code 17851 falls within Northumberland County, Pennsylvania.
Does ZIP code 17851 have a large retiree population?
47% of households in ZIP code 17851 receive Social Security income, suggesting a significant retiree or disability population.
How educated is the population of ZIP code 17851?
13% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.
What is the poverty rate in ZIP code 17851?
17% of residents in ZIP code 17851 live below the poverty line, above the national average.
What is the typical home value in ZIP code 17851?
The median home value in ZIP code 17851 is $62,800.
What timezone is ZIP code 17851 in?
ZIP code 17851 observes the EST timezone.
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