Union County, Pennsylvania Demographics 2026
Union County, Pennsylvania has a population of 42,456, the 50th most populous county in Pennsylvania. The median household income is $76,404 and the median home value is $240,100. The poverty rate is 9.0%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Union County Quick Facts
How Union County Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 42,570 | 42,456 | -0.3% |
| Median household income | $72,894 | $76,404 | +4.8% |
| Median home value | $222,900 | $240,100 | +7.7% |
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 45 | National average: 61
Education
Educational Attainment (Adults 25+)
Cities & Places in Union County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Lewisburg | 5,257 | $54,767 | 20.8% | $235,200 |
| Mifflinburg | 3,473 | $67,391 | 4.6% | $209,500 |
| Linntown | 1,764 | $114,426 | 5.9% | $265,800 |
| Winfield | 909 | $88,625 | 4.6% | $253,200 |
| West Milton | 804 | $47,574 | 0.0% | $174,200 |
| New Berlin | 781 | $89,286 | 11.5% | $204,600 |
| New Columbia | 766 | $115,176 | 2.2% | $181,900 |
| Vicksburg (Union County) | 289 | $37,961 | 42.6% | N/A |
| Laurelton | 258 | $67,188 | 24.4% | $151,700 |
| Hartleton | 248 | $82,875 | 8.1% | $148,900 |
| Allenwood | 246 | $75,000 | 6.2% | $163,400 |
Explore Pennsylvania Rankings
Population Overview
Union County is located in Pennsylvania with a total population of 42,456. It is the 50th most populous county out of 67 in Pennsylvania. The county encompasses 11 Census-designated places.
Age Demographics
The median age in Union County is 41.0 years. This is about the same as the state median of 40.9 years.
Economy, Income & Housing
The median household income in Union County is $76,404. This is 2% lower than the state median of $77,971. It is also 5% lower than the national median of $80,734. The poverty rate stands at 9.0%. This is 23% lower than the state poverty rate of 11.7%. The unemployment rate is 2.2%. This is 59% lower than the state rate of 5.3%. The median home value is $240,100. Housing costs are 6% lower than the state median of $254,500. The home-value-to-income ratio is 3.1x. 72.3% of occupied housing units are owner-occupied. This homeownership rate is 4% higher than the state average of 69.3%.
Race & Ethnicity
Union County has a predominantly White (non-Hispanic) population, comprising 86.0% of all residents. Black or African American residents account for 5.7%. The Asian population (1.8%) is well below the state average of 3.8%.
Education
26.5% of residents aged 25 and older hold a bachelor's degree or higher. This is 25% lower than the state rate of 35.2%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 86.1%.
Data Sources & Methodology
All figures for Union County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against Pennsylvania and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.
Frequently Asked Questions
What is the population of Union County, Pennsylvania?
Union County has a population of 42,456, making it the 50th most populous county in Pennsylvania.
What is the median income in Union County?
The median household income in Union County is $76,404 with a poverty rate of 9.0%.
How many cities are in Union County, Pennsylvania?
Union County contains 11 Census-designated places.