Median household income is a gauge of the overall economic health of the region and the financial resources of residents.

In 2020-24, the median income in Lancaster County was $87,000, about a 15% increase from 2010-14 (after inflation). The median income in the county is higher than in the state and the nation.

Median income in the City of Lancaster was $63,700, 26% lower than Lancaster County.

Lancaster County had a lower median income than Chester ($127,200), was similar to Cumberland ($87,500), and York ($84,800), and higher than Berks ($79,800), Lebanon $78,400), and Dauphin ($76,200).

Figures are in constant 2024 dollars. The multi-year figures are from the Census Bureau's American Community Survey. The bureau combined five years of responses to the survey to provide estimates for smaller geographic areas and increase the precision of its estimates. However, because the information came from a survey, the samples responding to the survey were not always large enough to produce reliable results, especially in small geographic areas. CGR has noted on data tables the estimates with relatively large margins of error. Estimates with three asterisks have the largest margins, plus or minus 50% or more of the estimate. Two asterisks mean plus or minus 35%-50%, and one asterisk means plus or minus 20%-35%. For all estimates, the confidence level is 90%, meaning there is 90% probability the true value (if the whole population were surveyed) would be within the margin of error (or confidence interval). The survey provides data on characteristics of the population that used to be collected only during the decennial census.