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Demographics of Dauphin County, Pennsylvania

Dauphin County, Pennsylvania had 293,351 people on July 1, 2025, by the Census Bureau’s estimate: +6,657 since July 2020. Age, income, poverty, housing and origin below come from the American Community Survey, averaged over 2020–2024, each with its margin of error.

Dauphin County, in four figures

293,351
Population
July 1, 2025, Vintage 2025 estimate.
+2.3%
Change since July 2020
+6,657 people.
39.4 ±0.3
Median age
ACS 2020–⁠2024.
$76,242 ±$1,935
Median household income
ACS 2020–⁠2024, in 2024 dollars.

Population, year by year

July 1 estimates from the Census Bureau’s Vintage 2025. Each year's change is births less deaths, net moves from abroad and net moves from elsewhere in the country, with the Bureau's small residual. The 2020 row's components run 3 months, from the April census to July 1.

Dauphin County, Pennsylvania's population grew 2.3% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Dauphin County, Pennsylvania's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).

Source: The Census Bureau

About this chart

The figures

Dauphin County, Pennsylvania's population grew 2.3% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Dauphin County, Pennsylvania's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).
July 1PopulationIndexUnited States
2020286,694100.0100.0
2021288,284100.6100.2
2022288,943100.8100.7
2023290,947101.5101.6
2024292,917102.2102.5
2025293,351102.3103.1

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Population of Dauphin County, Pennsylvania on July 1 of each year, Vintage 2025
July 1PopulationChange
2020286,694+286
2021288,284+1,590
2022288,943+659
2023290,947+2,004
2024292,917+1,970
2025293,351+434

Age, 2020–2024

The median age is 39.4 ±0.3: for men 38.0 ±0.3 and for women 40.4 ±0.3. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Dauphin County by age, ACS 2020–2024
AgePeopleShare
Under 517,059 ±325.9% ±<0.1
5 to 1747,659 ±1,38016.5% ±0.5
18 to 2423,621 ±9468.2% ±0.3
25 to 4477,033 ±1,32826.6% ±0.5
45 to 6472,000 ±1,25724.9% ±0.4
65 and over52,221 ±1,52318.0% ±0.5

Income and poverty, 2020–2024

Median household income is $76,242 ±$1,935, and income per person $42,294 ±$1,041, in 2024 dollars. The median is $77,971 ±$342 in Pennsylvania and $80,734 ±$166 in the United States.

Households by income

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Households in Dauphin County by income, ACS 2020–2024
Household incomeHouseholdsShare
Under $25,00018,254 ±1,12015.0% ±0.9
$25,000 to $49,99920,575 ±1,33717.0% ±1.1
$50,000 to $74,99920,940 ±1,17317.3% ±1.0
$75,000 to $99,99917,269 ±1,24114.2% ±1.0
$100,000 to $149,99922,120 ±1,12618.2% ±0.9
$150,000 to $199,99910,062 ±7518.3% ±0.6
$200,000 or more12,138 ±1,04110.0% ±0.9

Poverty by age

The poverty rate is the share of people whose family income is below the federal threshold for their family’s size, of everyone for whom the Bureau determines it (B17020).

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Poverty rate in Dauphin County by age, ACS 2020–2024
AgeBelow povertyRate
All ages36,661 ±2,53212.9% ±0.9
Under 1810,710 ±1,11216.7% ±1.7
18 to 5917,671 ±1,44111.8% ±0.9
60 and over8,280 ±93011.7% ±1.3

Housing, 2020–2024

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Housing in Dauphin County, ACS 2020–2024
MeasureDauphin CountyPennsylvania
Housing units127,828 ±1595,806,452 ±672
Occupied94.9% ±0.690.8% ±0.2
Vacant5.1% ±0.59.2% ±0.2
Owner occupied63.1% ±0.969.3% ±0.3
Renter occupied36.9% ±0.930.7% ±0.2
Median home value$236,400 ±$3,814$254,500 ±$767
Median gross rent$1,217 ±$26$1,209 ±$5
Median year built1972 ±21965 ±1

Occupied and vacant are shares of all housing units; owner and renter occupied are shares of occupied units. Value and rent are medians in 2024 dollars.

Origin and place of birth, 2020–2024

Hispanic or Latino origin is not a race in the Census Bureau’s tables. Here the people of Hispanic origin, of any race, are one row, and everyone else is counted by race alone (B03002), so the rows add to the whole.

Hispanic origin and race

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People in Dauphin County by Hispanic origin and race, ACS 2020–2024
OriginPeopleShare
Hispanic or Latino34,032 ±011.8% ±<0.1
White alone, not Hispanic175,496 ±93860.6% ±0.3
Black alone, not Hispanic47,138 ±94616.3% ±0.3
Asian alone, not Hispanic18,879 ±4846.5% ±0.2
American Indian and Alaska Native alone, not Hispanic89 to 325< 0.1% to 0.1%
Native Hawaiian and Other Pacific Islander alone, not Hispanic0 to 1410% to < 0.1%
Some other race alone, not Hispanic1,800 ±6990.6% ±0.2
Two or more races, not Hispanic11,985 ±1,1464.1% ±0.4

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Place of birth and citizenship

“Born a citizen outside the states” counts people born in Puerto Rico, the island areas, or abroad to American parents. Naturalized citizens and those who are not citizens together make up the people born abroad (B05002).

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People in Dauphin County by place of birth and citizenship, ACS 2020–2024
BornPeopleShare
Born in the state194,691 ±2,43967.2% ±0.8
Born in another state57,199 ±2,74719.8% ±0.9
Born a citizen outside the states9,297 ±1,1883.2% ±0.4
Born abroad28,406 ±1,5879.8% ±0.5
Naturalized citizens15,083 ±1,1485.2% ±0.4
Not citizens13,323 ±1,5524.6% ±0.5

Dauphin County among the counties of Pennsylvania

14th of 67 by population, July 2025. Every one is listed on the Pennsylvania page.

Counties of Pennsylvania near Dauphin County in population, July 2025
CountyJuly 2025Change since 2020
Berks County440,072+2.7%
Lehigh County384,383+2.7%
Westmoreland County349,324−1.4%
Luzerne County332,126+2.1%
Northampton County324,411+3.7%
Dauphin County293,351+2.3%
Cumberland County277,270+6.5%
Erie County265,832−1.8%
Lackawanna County216,502+0.5%
Washington County210,802+0.7%
Butler County200,169+3.2%

Elsewhere on the site

Rankings this appears in

Sources

Compiled automatically from Census Bureau population estimates — counties and Puerto Rico municipios, with components of change and American Community Survey 5-year estimates — table-based Summary File by a checked SQL query · Editor: Kian O'Connor · How this site is built

Data retrieved