Demographics of Lehigh County, Pennsylvania

Lehigh County, Pennsylvania had 384,383 people on July 1, 2025, by the Census Bureau’s estimate: +9,934 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.

Lehigh County, in four figures

384,383
Population: July 1, 2025, Vintage 2025 estimate.; +2.7%
Change since July 2020: +9,934 people.; 39.6 ±0.2
Median age: ACS 2020–⁠2024.; $80,079 ±$1,728
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.

Lehigh County, Pennsylvania's population grew 2.7% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Lehigh 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).

U.S. Census Bureau — Census Bureau population estimates — counties and Puerto Rico municipios, with components of change

About this chart

The figures

Lehigh County, Pennsylvania's population grew 2.7% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Lehigh 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 1	Population	Index	United States
2020	374,449	100.0	100.0
2021	375,852	100.4	100.2
2022	376,746	100.6	100.7
2023	380,068	101.5	101.6
2024	382,939	102.3	102.5
2025	384,383	102.7	103.1

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Population of Lehigh County, Pennsylvania on July 1 of each year, Vintage 2025
July 1	Population	Change	Births less deaths	From abroad	From elsewhere in the country
2020	374,449	−97	−200	+46	−50
2021	375,852	+1,403	+66	+718	+236
2022	376,746	+894	+42	+2,265	−1,202
2023	380,068	+3,322	+99	+3,941	−643
2024	382,939	+2,871	+236	+3,763	−1,101
2025	384,383	+1,444	+210	+1,901	−688

Age, 2020–2024

The median age is 39.6 ±0.2: for men 38.8 ±0.3 and for women 40.5 ±0.4. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Lehigh County by age, ACS 2020–2024
Age	People	Share	Pennsylvania	United States
Under 5	21,426 ±47	5.7% ±<0.1	5.2% ±<0.1	5.6% ±<0.1
5 to 17	63,072 ±1,423	16.7% ±0.4	15.2% ±0.1	16.3% ±<0.1
18 to 24	33,593 ±1,125	8.9% ±0.3	9.0% ±<0.1	9.1% ±<0.1
25 to 44	99,108 ±1,605	26.2% ±0.4	25.5% ±0.1	26.9% ±<0.1
45 to 64	94,585 ±1,533	25.0% ±0.4	25.6% ±0.1	24.8% ±<0.1
65 and over	67,008 ±1,543	17.7% ±0.4	19.5% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $80,079 ±$1,728, and income per person $43,088 ±$901, 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 Lehigh County by income, ACS 2020–2024
Household income	Households	Share	Pennsylvania	United States
Under $25,000	18,709 ±1,095	13.0% ±0.8	15.1% ±0.1	14.6% ±<0.1
$25,000 to $49,999	25,811 ±1,409	17.9% ±1.0	17.4% ±0.1	16.7% ±<0.1
$50,000 to $74,999	23,584 ±1,315	16.3% ±0.9	15.9% ±0.1	15.5% ±<0.1
$75,000 to $99,999	18,666 ±1,183	12.9% ±0.8	12.8% ±0.1	12.6% ±<0.1
$100,000 to $149,999	25,084 ±1,161	17.4% ±0.8	17.7% ±0.1	17.5% ±<0.1
$150,000 to $199,999	14,610 ±912	10.1% ±0.6	9.3% ±0.1	9.6% ±<0.1
$200,000 or more	17,922 ±1,053	12.4% ±0.7	11.8% ±0.1	13.4% ±0.1

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 Lehigh County by age, ACS 2020–2024
Age	Below poverty	Rate	Pennsylvania	United States
All ages	42,770 ±2,741	11.6% ±0.7	11.7% ±0.1	12.5% ±0.1
Under 18	14,462 ±1,264	17.4% ±1.5	15.6% ±0.2	16.1% ±0.1
18 to 59	21,038 ±1,563	10.7% ±0.8	11.0% ±0.2	11.6% ±0.1
60 and over	7,270 ±657	8.2% ±0.7	10.1% ±0.2	11.0% ±<0.1

Housing, 2020–2024

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Housing in Lehigh County, ACS 2020–2024
Measure	Lehigh County	Pennsylvania	United States
Housing units	151,220 ±109	5,806,452 ±672	143,775,355 ±10,234
Occupied	95.5% ±0.5	90.8% ±0.2	89.9% ±0.1
Vacant	4.5% ±0.4	9.2% ±0.2	10.1% ±0.1
Owner occupied	65.6% ±0.8	69.3% ±0.3	65.2% ±0.3
Renter occupied	34.4% ±0.9	30.7% ±0.2	34.8% ±0.1
Median home value	$300,400 ±$5,846	$254,500 ±$767	$332,700 ±$236
Median gross rent	$1,383 ±$27	$1,209 ±$5	$1,413 ±$2
Median year built	1968 ±2	1965 ±1	1980 ±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 Lehigh County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Pennsylvania	United States
Hispanic or Latino	105,976 ±0	28.0% ±<0.1	8.7% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	223,873 ±587	59.1% ±0.2	73.0% ±<0.1	57.4% ±<0.1
Black alone, not Hispanic	22,374 ±860	5.9% ±0.2	10.3% ±<0.1	11.9% ±<0.1
Asian alone, not Hispanic	13,297 ±630	3.5% ±0.2	3.8% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	172 ±71	< 0.1% ±<0.1	0.1% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	5 to 101	< 0.1%	< 0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	2,058 ±594	0.5% ±0.2	0.5% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	10,989 ±1,180	2.9% ±0.3	3.6% ±0.1	4.3% ±<0.1

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 Lehigh County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Pennsylvania	United States
Born in the state	219,680 ±2,925	58.0% ±0.8	70.6% ±0.1	57.3% ±<0.1
Born in another state	82,030 ±2,731	21.7% ±0.7	19.8% ±0.1	26.9% ±<0.1
Born a citizen outside the states	22,426 ±1,691	5.9% ±0.4	1.9% ±<0.1	1.7% ±<0.1
Born abroad	54,656 ±2,650	14.4% ±0.7	7.7% ±0.1	14.1% ±<0.1
Naturalized citizens	29,208 ±1,487	7.7% ±0.4	4.3% ±0.1	7.4% ±<0.1
Not citizens	25,448 ±2,314	6.7% ±0.6	3.4% ±0.1	6.8% ±<0.1

Lehigh County among the counties of Pennsylvania

10th of 67 by population, July 2025. Every one is listed on the Pennsylvania page.

Counties of Pennsylvania near Lehigh County in population, July 2025
County	July 2025	Change since 2020
Delaware County	580,937	+0.8%
Lancaster County	563,159	+1.9%
Chester County	557,116	+4.2%
York County	473,197	+3.6%
Berks County	440,072	+2.7%
Lehigh County	384,383	+2.7%
Westmoreland County	349,324	−1.4%
Luzerne County	332,126	+2.1%
Northampton County	324,411	+3.7%
Dauphin County	293,351	+2.3%
Cumberland County	277,270	+6.5%

Elsewhere on the site

Sources

Census Bureau population estimates — counties and Puerto Rico municipios, with components of change — U.S. Census Bureau · U.S. Government work · retrieved September 25, 2026
American Community Survey 5-year estimates — table-based Summary File · U.S. Government work

Data retrieved September 25, 2026