17878 ZIP Code — Stillwater, PA

Columbia County, Pennsylvania

ZIP code 17878 is located in Stillwater, Pennsylvania, within Columbia County. It covers approximately 22.00 square miles and serves a population of 1,534 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 570.

About ZIP code 17878

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 $185,200. Owner-occupancy is high at 91%, well above the national average.

Median household income is $74,464. 45% 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 31 minutes is near the national average.

College attainment at 17% is below the national average, consistent with a trades and production-oriented local economy.

Overall, ZIP code 17878 reflects a community defined by a trades-oriented workforce, high homeownership, and a significant Social Security-dependent population.

1,534
population
22.00
sq mi land
Standard
ZIP type
Eastern (ET)
timezone
17878 ZIP code map
Cities in ZIP code 17878

Below are the cities the US Postal Service accepts for ZIP code 17878. Using any city not on this list may result in mail delivery delays.

City Status
Stillwater Acceptable
Demographics updated 05/2026
Population
Total population 1,534
Population density 70 / sq mi
State FIPS 42
County FIPS 037
Geography
Land area 22.00 sq mi
Water area 0.25 sq mi
Latitude 41.1529
Longitude -76.3529
Timezone Eastern (ET)
Area code 570
Total population by age
Gender
Race & ethnicity
Economics updated 05/2026
Household income
Income range This ZIP County avg State avg
Under $50k 35.8% 47.2% 39.8%
$50k – $100k 37.5% 31.6% 30.8%
$100k – $200k 19.2% 18.0% 22.4%
Over $200k 7.5% 3.3% 7.1%

Demographics & statistics

1,534
Population
70
People per sq mi
50.4
Median age
$74,464
Median household income
$35,544
Per capita income
$185,200
Median home value
$660
Median monthly rent
91.1%
Home ownership
7.9%
Poverty rate
1.1%
Unemployment
642
Housing units
16.5%
Bachelor's or higher

Age distribution

Male Female
34
Under 5
36
30
5–9
31
48
10–14
51
25
15–19
27
45
20–24
48
79
25–34
83
64
35–44
67
84
45–54
89
57
55–59
59
61
60–64
64
120
65–74
126
63
75–84
67
37
85+
39
← Male
Female →

Age summary

GroupCount%
Under 1826717.4%
18 and over1,26782.6%
65 and over45229.5%
Median age50.4 years

Race & ethnicity

White 95.2%
Hispanic or Latino 1.9%
Two or more races 1.5%
Other race 1.2%
Black or African American 0.3%
GroupCount%
White1,48895.2%
Hispanic or Latino291.9%
Two or more races241.5%
Other race181.2%
Black or African American40.3%

Household income

Income range This ZIP County avg State avg
Under $50k 35.8% 47.2% 39.8%
$50k – $100k 37.5% 31.6% 30.8%
$100k – $200k 19.2% 18.0% 22.4%
Over $200k 7.5% 3.3% 7.1%
Under $10k 5.7%
$10k–$15k 1.7%
$15k–$25k 6.3%
$25k–$35k 6.0%
$35k–$50k 15.1%
$50k–$75k 15.8%
$75k–$100k 19.2%
$100k–$150k 16.6%
$150k–$200k 4.3%
$200k+ 9.4%
Range% of households
Under $10k5.7%
$10k–$15k1.7%
$15k–$25k6.3%
$25k–$35k6.0%
$35k–$50k15.1%
$50k–$75k15.8%
$75k–$100k19.2%
$100k–$150k16.6%
$150k–$200k4.3%
$200k+9.4%
Median income$74,464

Housing

Home values

Under $50k 3.6%
$50k–$100k 16.7%
$100k–$150k 7.5%
$150k–$200k 25.2%
$200k–$300k 22.9%
$300k–$500k 15.8%
$500k–$1M 8.1%
$1M+ 0.2%

Housing overview

MetricValue
Median home value$185,200
Median rent / month$660
Owner occupied91.1%
Renter occupied8.9%
Vacant15.9%
Single-family detached83.7%
Large apartment buildings0.0%
Mobile homes9.7%
Median rooms6.6
Avg household size (owned)2.42

Year built

Era%
2020 or later0.0%
2010–20193.6%
2000–20099.1%
1990–199910.1%
1980–198910.1%
1970–197924.2%
1960–19693.2%
1950–19597.2%
1940–19494.0%
1939 or earlier28.5%

Bedrooms

Size% of units
No bedroom (studio)0.0%
1 bedroom5.5%
2 bedrooms18.9%
3 bedrooms53.9%
4 bedrooms16.3%
5+ bedrooms5.5%

Vehicles per household

Vehicles% of households
No vehicle1.2%
1 vehicle16.8%
2 vehicles35.1%
3 or more46.9%

Heating fuel

Fuel type%
Utility gas0.7%
Electricity16.6%
Propane / LP gas14.0%
Fuel oil38.0%
Wood14.7%
No fuel used0.7%

Households & families

Household typeCount%
Married-couple family42472.6%
Cohabiting couple264.5%
Male householder, no spouse6310.8%
Female householder, no spouse7112.2%
Households with children under 1815226.0%
Households with seniors (65+)24241.4%
Average household size2.49

Marital status

StatusMaleFemale
Never married21.8%15.7%
Married64.0%66.2%
Separated2.6%0.2%
Widowed2.6%10.4%
Divorced8.9%7.5%

Education

Less than 9th grade 0.8%
Some HS, no diploma 5.5%
HS graduate 51.8%
Some college, no degree 14.5%
Associate's degree 11.0%
Bachelor's degree 8.7%
Graduate / professional 7.8%
Metric%
HS diploma or higher93.7%
Bachelor's or higher16.5%

School enrollment (ages 3–17)

TypeCount%
Nursery / preschool41.7%
Kindergarten2510.7%
Elementary school10645.5%
High school6327.0%
College / grad school3515.0%

Employment

Industry of employment

Education & healthcare 25.8%
Manufacturing 15.5%
Retail trade 11.4%
Construction 8.8%
Agriculture & mining 6.4%
Other services 5.4%
Professional & management 5.2%
Transportation & utilities 5.1%
Finance & real estate 4.8%
Wholesale trade 4.1%
Public administration 2.9%
Arts, food & hospitality 2.5%
Information 2.3%

Occupation

Category%
Management, business & arts37.2%
Service10.6%
Sales & office21.4%
Natural resources & construction14.5%
Production & transportation16.4%

Employment type

Type%
Private sector81.9%
Government14.3%
Self-employed3.8%
Unpaid family workers0.0%

Commute

Method%
Drive alone77.2%
Carpool4.0%
Public transit0.3%
Walk3.6%
Work from home14.1%
Other means0.8%
Avg commute (minutes)30.7

Poverty

All people 7.9%
Under 18 years 3.0%
18 and over 9.0%
Married-couple families 7.5%
Female-led households 9.8%

Income support

Source% of households
Social Security45.2%
Retirement income28.4%
Supplemental Security3.3%
Cash public assistance0.7%
Food stamps / SNAP6.8%

Health indicators

Condition%
Obesity34.5%
High blood pressure36.1%
High cholesterol35.8%
Diabetes11.5%
Heart disease8.2%
Stroke3.6%
Asthma9.9%
Arthritis32.3%
Kidney disease3.3%
Pulmonary disease8.6%
Cancer8.3%
Behavior / access%
Smoking19.6%
Binge drinking17.8%
No physical activity24.3%
Less than 7 hrs sleep35.4%
Depression21.6%
Fair or poor health15.3%
Poor mental health14.8%
Poor physical health11.7%
No health insurance10.0%
Visited doctor (checkup)79.2%
Visited dentist66.1%
Cholesterol screening91.1%
Teeth loss15.0%

Veterans & disability

VeteransCount%
Civilian veterans13210.4%
Disability%
Any disability15.1%
Under 182.2%
18–64 years13.9%
65 and over26.4%

Health insurance coverage

Type%
Private insurance72.0%
Public insurance47.1%
No insurance3.6%
Uninsured under 191.5%

Language & origin

Language spoken at home (age 5+)

LanguageCount%
English only1,46495.4%
Spanish00.0%
Other Indo-European00.0%
Asian & Pacific Islander00.0%
Other languages00.0%

Place of birth & citizenship

OriginCount%
Native born (US)1,52299.2%
Born in same state1,48897.0%
Born in different state1,31185.5%
Foreign born342.2%
Naturalized citizen120.8%
Not a US citizen216.7%

Ancestry

AncestryCount%
French17511.4%
Italian1439.3%
Arab1409.1%
Norwegian593.8%
AncestryCount%
English563.7%
Irish90.6%
German50.3%
Polish30.2%

Technology access

Metric% of households
Computer access38.1%
Internet access88.5%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 17878

What city is ZIP code 17878 in?

ZIP code 17878 is primarily assigned to Stillwater, Pennsylvania.

What county is ZIP code 17878 in?

ZIP code 17878 falls within Columbia County, Pennsylvania.

Does ZIP code 17878 have an older population?

30% of residents in ZIP code 17878 are 65 or older, above the national average of ~17%.

Is ZIP code 17878 mostly owner-occupied?

91% of occupied units in ZIP code 17878 are owner-occupied, well above the national average.

Does ZIP code 17878 have a large retiree population?

45% of households in ZIP code 17878 receive Social Security income, suggesting a significant retiree or disability population.

Does ZIP code 17878 have a large veteran population?

10% of civilians in ZIP code 17878 are veterans, above the national average of ~7%.

What timezone is ZIP code 17878 in?

ZIP code 17878 observes the EST timezone.

Need the complete ZIP code database? Download all 42,000+ US ZIP codes — Excel, CSV, or Access. Includes lat/lng, county FIPS & timezone.
Download database →