Lancaster County Population

1790–2026

11,019

2026 projection

1.1% since 2020 (increase)

02K4K6K8K10K12K18001850190019502000

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Lancaster County. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202611,019+240.22%
202510,995+240.22%
202410,971+920.85%
202310,879+440.41%
202210,835-1030.94%
202110,938+390.36%
202010,899+2802.64%
201910,619-730.68%
201810,692-320.30%
201710,724-520.48%

Showing 10 of 38 years.

Lancaster County Demographics

58.2median age

Median age

Female58.9 yrs
Male57.3 yrs

Adults

9,348
4,364 seniors (65+) · 47% of adults4,984 other adults

Sex

Female 52.2% · 5,708Male 47.8% · 5,228

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 109 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Lancaster County Income

$69,713median household income

Median household income

$69,713

Half of households earn more, half earn less

Median earnings

$49,006

Typical yearly pay for a worker 25 or older.

Poverty rate

10.3%

About 1 in 10 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Lancaster County Marital Status

56% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married56%62%51%
Never married19%21%18%
Divorced10%8%11%
Widowed13%7%19%
Separated2%3%2%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201