| City: | Somerset, Pennsylvania |
| Names to Avoid: | Sci Somerset |
| County: | Somerset County |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 9:10:10 PM |
| Population: | 2,320 [See All] |
| Area Codes: | 582 / 814 |
| Classification: | Unique [Company/Government] |
| Coordinates: | 40.0084, -79.0784 |
| Land Area: | 0.175 sq mi |
| Quick Link: |
State Correctional Institution at Somerset, a medium-security state prison operated by the Pennsylvania Department of Corrections, uses dedicated ZIP code 15510 in Somerset County. The facility opened in 1993 after Governor Robert P. Casey dedicated it on April 13 of that year, part of a statewide initiative to address prison overcrowding. Located about 70 miles southeast of Pittsburgh near the Pennsylvania Turnpike's Somerset Interchange, the institution sits on approximately 300 acres with 63 acres contained within a double 14-foot perimeter fence.
The 2020 Census recorded 2,320 residents within this ZIP code, all housed in institutional group quarters. A median age of 37.7 years reflects the typical demographic profile of an incarcerated population. The facility's housing infrastructure includes multiple units of varying security levels, infirmary beds, and psychiatric observation cells. In March 2024, SCI Somerset received 44 death row inmates transferred from SCI Phoenix. This dedicated postal designation has served the institution for over two decades, with Somerset as the valid mailing city for all correspondence.
| Population: | 2,320 |
| Median Age: | 37.7 |
| Housing Units: | 0 |
| Residential: | 0 |
| Business: | 1 |
Buildings registered in the USPS ZIP+4 database with designated codes for direct mail delivery.
ZIP Code 15510 has 2,320 residents and 0 households. The median age is 37.7 years, younger than the state (41.0) and slightly younger than the nation (38.8). The gender split is 100.0% male and 0.0% female, which is much higher than the state male share (48.9%), making this a male-majority area. Largest groups are Black or African American (49.9%, much higher than the state average of 10.9% and well above the national average of 12.4%) and White (41.3%, much lower than the state average of 75.0% and well below the national average of 61.6%); Hispanic or Latino residents make up 8.7%, which is much lower than the national average (18.7%), and Black or African American share is much higher than both the state (10.9%) and national averages (12.4%).
Explore More: Population Over Time By Age & Gender By Race By Gender Nativity & Citizenship
| 2020 Population: | 2,320Source: Census DHC |
| 2024 ACS Population Estimate: | 2,118Source: Census ACS |
| 2026 ZC Population Estimate: | 0Source: ZIP-Codes.com |
| Population Density: | 13,257.1 people per sq mile |
| Average Income: | $0Source: Census ACS |
| Households: | 0Source: Census DHC |
| Average House Value: | $666,666,666Source: Census ACS |
| Persons Per Household: | 0.00Source: Census DHC |
| Average Family Size: | 0.00Source: Census ACS |
| Group | 2010 | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Census ACS Population Estimate | -- | 2,215 | 2,223 | 2,265 | 2,327 | 2,433 | 2,468 | 2,518 | 2,564 | 2,592 | 2,588 | 2,617 | 2,194 | 2,128 | 2,118 |
| Decennial Census | 2,229 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 2,320 | -- | -- | -- | -- |
Median Age: 37.7
Male Median Age: 37.7
Female Median Age: 0
| Group | < 5 | 5-9 | 10-14 | 15-19 | 20-24 | 25-29 | 30-34 | 35-39 | 40-44 | 45-49 | 50-54 | 55-59 | 60-64 | 65-69 | 70-74 | 75-79 | 80-84 | 85+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Male | 0 | 0 | 0 | 0 | 181 | 387 | 398 | 357 | 269 | 234 | 194 | 136 | 99 | 43 | 19 | 2 | 0 | 1 |
| Female | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Total | 0 | 0 | 0 | 0 | 181 | 387 | 398 | 357 | 269 | 234 | 194 | 136 | 99 | 43 | 19 | 2 | 0 | 1 |
| White: | 958 | 37.99% |
| Black: | 1,157 | 45.88% |
| Hispanic:* | 202 | 8.01% |
| Asian: | 3 | 0.12% |
| American Indian: | 0 | 0% |
| Hawaiian: | 0 | 0% |
| Other: | 202 | 8.01% |
| Total: | 2,522 | 100% |
| Gender | Count | % | Median Age |
|---|---|---|---|
| Males: | 2,320 | 100.00% | 37.7 years |
| Females: | 0 | 0% | 0.0 years |
| Total: | 2,320 | 100% | 37.7 years |
| Native, born in the United States: | 2,026 | 95.66% |
| Native, born in PR, Island Areas, or abroad: | 47 | 2.22% |
| Foreign born, naturalized U.S. citizen: | 5 | 0.24% |
| Foreign born, not a U.S. citizen: | 40 | 2.12% |
| Total Population: | 2,118 | 100% |
| Total Native Population: | 2,073 | 97.88% |
| Total Foreign-born Population: | 45 | 2.12% |
In 2024, the Median household income is $0, which is well under the national median ($80,734), and above its 2019 pre-pandemic level by $0. Family households earn a median of $0 versus $0 for nonfamily households (a difference of $0). By gender, male median income is $24,013 and female is $0, which is considerably lower than the national female median ($55,274), with a current gap of $24,013 that has widened from 2011 to 2024. The labor-force participation rate is 0.0%, which is markedly below the national rate (63.5%).
Explore More: Income Over Time Household Income Employment Status By Occupation
| Income Type | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Household Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Median Family Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Median NonFamily Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Median Male Income | $18,646 | $16,142 | $15,873 | $15,955 | $11,771 | $9,625 | $13,533 | $19,792 | $22,740 | $22,101 | $23,419 | $25,000 | $25,208 | $24,013 |
| Median Female Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Employed: | 0 | 0.00% |
| Unemployed: | 0 | 0.00% |
| Not In Labor Force: | 2,118 | 100.00% |
| Total: | 2,118 | 100% |
| Management, business, science, and arts: | 0 | 0% |
| Service: | 0 | 0% |
| Sales and Office: | 0 | 0% |
| Natural resources, construction, and maintenance: | 0 | 0% |
| Production, transportation, and material moving: | 0 | 0% |
| Total Civilian Employed Population: | 0 | 100% |
In 2024, 0.70% of adults (25+) have a bachelor's degree or higher, which is far lower than the national rate (35.70%). High school or higher is 79.80%, which is far lower than the national rate (89.60%). The uninsured rate is -666,666,666.00%, which is far lower than the national rate (8.40%). Private coverage is -666,666,666.00%, which is far lower than the national rate (67.10%). Public coverage is -666,666,666.00%, which is far lower than the national rate (36.70%). The share of people in poverty is -666,666,666.00%, which is far lower than the national rate (8.80%). Poverty has been broadly stable, which may reflect structural barriers or offsetting gains and setbacks. Among residents ages 3+, the largest enrollment group is high school (87.27%). College enrollment is 12.73%, which is comparable to the national rate (26.70%), meaning the community mirrors broader higher-education participation.
Explore More: Educational Attainment Health Insurance Poverty Over Time School Enrollment
| Less than 9th grade: | 66 | 3.40% |
| 9th to 12th grade, no diploma: | 326 | 16.81% |
| High school graduate (includes equivalency): | 1,337 | 68.95% |
| Some college, no degree: | 182 | 9.39% |
| Associate's degree: | 15 | 0.77% |
| Bachelor's degree: | 6 | 0.31% |
| Graduate or professional degree: | 7 | 0.36% |
| Total: | 1,939 | 100% |
| High school or higher: | 1,547 | 79.78% |
| Bachelor's degree or higher: | 13 | 0.67% |
| Private Insurance: | 0 | 0% |
| Public Insurance: | 0 | 0% |
| No Insurance: | 0 | 0% |
| Total: | 0 | 100% |
| Has Health Insurance: | 0 | 0% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| % of People in Poverty | 0.0% | -666,666,666.0% | -666,666,666.0% | -666,666,666.0% | -666,666,666.0% | -666,666,666.0% | -666,666,666.0% | -666,666,666.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% |
Note: Counts of Families & People in poverty are not published at the ZIP Code level due to small sample sizes. Percentages shown are survey estimates from the American Community Survey (ACS). They may differ from official poverty statistics. The U.S. Census Bureau defines poverty status by comparing a family's or individual's total income with federal poverty thresholds that vary by family size and composition.
| Nursery School, Preschool: | 0 | 0.00% |
| Kindergarten: | 0 | 0.00% |
| Elementary school (grades 1-8): | 0 | 0.00% |
| High school (grades 9-12): | 96 | 87.27% |
| College or graduate school: | 14 | 12.73% |
| Total: | 110 | 100% |
| Early Childhood: | 0 | 0.00% |
| K-12 (Primary & Secondary School): | 96 | 87.27% |
ZIP Code 15510 is assigned to a single organization or institution. Detailed business demographics are not published for unique ZIP Codes. USPS data shows 0 residential mailboxes and 1 business mailboxes, reflecting local delivery coverage.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 1Source: USPS |
| Total Delivery Receptacles: | 4Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 0Source: CBP |
| 1st Quarter Payroll: | $0Source: CBP |
| Annual Payroll: | $0Source: CBP |
| # of Employees: | 0Source: CBP |
ZIP Code 15510 is located in Somerset County, Pennsylvania, within the Somerset, PA Metropolitan Statistical Area (CBSA 43740) and Pennsylvania's 14th Congressional District. This Micro area has a population of 77,742 people, about 2.98% of whom live in ZIP Code 15510. It covers 0.175 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Somerset, PASource: Census |
| CBSA Number: | 43740Source: Census |
| CBSA Type: | MicroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 77,742Source: Census |
| MSA: | Johnstown, PA MSASource: Census |
| Land Area: | 0.175 sq miSource: Census |
| Water Area: | --Source: Census |
| Congressional District: | 14Source: USPS |
| Congressional Land Area: | 209.29 sq miSource: Census |
| PMSA: | --Source: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 4271776Source: Census |
| Place Name: | Somerset borough; PennsylvaniaSource: Census |
We could not locate which school district 15510 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.
Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on March 1, 2026.