Lima, Pennsylvania Demographics & Population 2026

Population Overview

Lima is a small community located in Pennsylvania, within Delaware County. The total population is 2,812. It ranks as the 506th most populous out of 1,991 Census-designated places in Pennsylvania.

Age Demographics

The median age in Lima is 70.9 years. This is 73% higher than the state median of 40.9 years. Only 10.1% of residents are under 18, indicating fewer families with children. 43.7% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.

Economy, Income & Housing

The median household income in Lima is $76,932. This is 1% 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 3.8%. This is 67% lower than the state poverty rate of 11.7%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 10.0%. This is 90% higher than the state rate of 5.3%. The median home value is $396,300. Housing costs are 56% higher than the state median of $254,500. The home-value-to-income ratio is 5.2x. 32.5% of occupied housing units are owner-occupied. This homeownership rate is 53% lower than the state average of 69.3%.

Race & Ethnicity

Lima has a predominantly White (non-Hispanic) population, comprising 95.1% of all residents. Black or African American residents account for 3.4%. The Black or African American population (3.4%) is well below the state average of 10.3%. The Hispanic or Latino population (0.1%) is well below the state average of 8.7%. The Asian population (1.3%) is well below the state average of 3.8%.

Education

36.3% of residents aged 25 and older hold a bachelor's degree or higher. This is 3% higher 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 92.7%. Notably, 17.1% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Lima, Pennsylvania is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Pennsylvania state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,991 Census-designated places in Pennsylvania. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.