Louisville/Jefferson County metro government (balance), Kentucky demographics

Louisville/Jefferson County (balance), KY demographics: median age 37.7; 33.8% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Louisville/Jefferson County metro government (balance), Kentucky · Consolidated-government balance · GEOID 2148006. The survey estimates a population of 631,818 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Louisville/Jefferson County metro government (balance) is 37.7 years, with a 90% margin of error of 0.2 years. There are 264,505 households (±1,752). Age and household distributions show how these totals are composed; they do not establish which neighborhood suits a particular person.

Every count and share is an estimate. “±” is a 90% margin of error (MOE); pp means percentage points. Derived shares use the category count divided by the named universe. Aggregated category MOEs and percentage MOEs are approximate. A margin larger than half its estimate is flagged as low precision. Blank source uncertainty is shown as unavailable, never zero.

Age distribution and sex

City, state and U.S. estimates · ACS 2020–2024
Measure / survey universe	City estimate ± MOE	State estimate ± MOE	U.S. estimate ± MOE
Median age Total population · years	37.7 ±0.2	39.1 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 631,818
Category	Count ± MOE	Share ± MOE (pp)	Kentucky	U.S.
Under 18	142,218 ±2,116	22.5% ±0.3 pp	22.6%	22.0%
18–34	150,004 ±1,791	23.7% ±0.3 pp	22.2%	22.8%
35–64	237,705 ±2,987	37.6% ±0.5 pp	37.9%	38.0%
65 and older	101,891 ±2,192	16.1% ±0.3 pp	17.3%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 631,818
Category	Count ± MOE	Share ± MOE (pp)	Kentucky	U.S.
Male	308,585 ±996	48.8% ±0.2 pp	49.5%	49.5%
Female	323,233 ±1,016	51.2% ±0.2 pp	50.5%	50.5%

The age groups are mutually exclusive and cover the entire population. The sex categories follow this ACS table’s published classification; they are not a survey of gender identity.

Race and Hispanic origin

Race · B02001 · ACS 2020–2024 Total population: 631,818
Category	Count ± MOE	Share ± MOE (pp)	Kentucky	U.S.
White alone	383,323 ±2,510	60.7% ±0.4 pp	82.6%	61.0%
Black or African American alone	141,308 ±2,232	22.4% ±0.4 pp	7.6%	12.2%
American Indian and Alaska Native alone	968 ±268	0.2% ±0.0 pp	0.2%	0.9%
Asian alone	18,548 ±1,050	2.9% ±0.2 pp	1.6%	6.0%
Native Hawaiian and Other Pacific Islander alone	303 ±105	0.0% ±0.0 pp	0.1%	0.2%
Some other race alone	17,555 ±1,847	2.8% ±0.3 pp	1.7%	7.1%
Two or more races	69,813 ±2,883	11.0% ±0.5 pp	6.2%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 631,818
Category	Count ± MOE	Share ± MOE (pp)	Kentucky	U.S.
Not Hispanic or Latino	571,875 ±967	90.5% ±0.2 pp	95.0%	80.7%
Hispanic or Latino	59,943 ±955	9.5% ±0.2 pp	5.0%	19.3%

Hispanic origin and race are separate questions. People of Hispanic or Latino origin may be of any race and appear in both tables. Do not add the Hispanic share to race shares. Race alone and two-or-more-race groups are the mutually exclusive categories of the race table.

Household types, children and living alone

Household types · B11001 · ACS 2020–2024 Households: 264,505
Category	Count ± MOE	Share ± MOE (pp)	Kentucky	U.S.
Married-couple family	98,397 ±2,076	37.2% ±0.7 pp	46.6%	46.9%
Other family: male householder, no spouse present	15,071 ±1,049	5.7% ±0.4 pp	5.3%	5.1%
Other family: female householder, no spouse present	39,729 ±1,639	15.0% ±0.6 pp	12.0%	12.2%
Nonfamily: householder living alone	91,279 ±2,396	34.5% ±0.9 pp	29.8%	28.7%
Nonfamily: householder not living alone	20,029 ±1,111	7.6% ±0.4 pp	6.3%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 264,505
Category	Count ± MOE	Share ± MOE (pp)	Kentucky	U.S.
Households with people under 18	72,059 ±1,564	27.2% ±0.6 pp	29.8%	29.5%
Households without people under 18	192,446 ±2,308	72.8% ±0.7 pp	70.2%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 264,505
Category	Count ± MOE	Share ± MOE (pp)	Kentucky	U.S.
One-person nonfamily households	91,279 ±2,396	34.5% ±0.9 pp	29.8%	28.7%
Two-person households	86,672 ±2,322	32.8% ±0.9 pp	34.9%	33.8%
Three-person households	41,111 ±1,689	15.5% ±0.6 pp	15.5%	15.3%
Four-person households	27,182 ±1,325	10.3% ±0.5 pp	11.6%	12.6%
Five-person households	11,783 ±1,064	4.5% ±0.4 pp	5.2%	5.9%
Six-person households	4,069 ±481	1.5% ±0.2 pp	1.9%	2.2%
Seven or more people	2,409 ±347	0.9% ±0.1 pp	1.1%	1.4%

A family household contains related people under the Census definition. A nonfamily household can contain one person or unrelated people sharing a home. Households with children can also appear in the household-type and size tables, so those tables must not be added together. Household estimates exclude people living in group quarters from the household universe.

Nativity and languages spoken at home

Nativity · B05002 · ACS 2020–2024 Total population: 631,818
Category	Count ± MOE	Share ± MOE (pp)	Kentucky	U.S.
Native	566,227 ±2,815	89.6% ±0.4 pp	95.3%	85.9%
Foreign born	65,591 ±2,787	10.4% ±0.4 pp	4.7%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 592,666
Category	Count ± MOE	Share ± MOE (pp)	Kentucky	U.S.
English only	511,477 ±2,869	86.3% ±0.5 pp	93.2%	77.7%
Spanish	44,950 ±1,517	7.6% ±0.3 pp	3.4%	13.6%
French, Haitian, or Cajun	3,683 ±863	0.6% ±0.1 pp	0.3%	0.7%
German or other West Germanic	1,573 ±564	0.3% ±0.1 pp	0.6%	0.5%
Russian, Polish, or other Slavic	2,503 ±523	0.4% ±0.1 pp	0.3%	0.7%
Other Indo-European	7,458 ±1,042	1.3% ±0.2 pp	0.6%	2.0%
Korean	1,015 ±337	0.2% ±0.1 pp	0.1%	0.3%
Chinese, including Mandarin and Cantonese	819 ±273	0.1% ±0.0 pp	0.2%	1.1%
Vietnamese	2,658 ±587	0.4% ±0.1 pp	0.1%	0.5%
Tagalog, including Filipino	1,412 ±390	0.2% ±0.1 pp	0.1%	0.6%
Other Asian and Pacific Island	3,687 ±768	0.6% ±0.1 pp	0.5%	1.1%
Arabic	3,828 ±977	0.6% ±0.2 pp	0.2%	0.5%
Other and unspecified	7,603 ±1,648	1.3% ±0.3 pp	0.5%	0.8%

Foreign born means not a U.S. citizen at birth; it includes naturalized citizens. Language categories describe speech at home among people age five and older. A language other than English at home does not establish that someone cannot speak English. This city page uses the published C16001 summary categories because the more detailed B16001 table does not provide these city records in this release.

Educational attainment

Highest completed education · B15003 · ACS 2020–2024 Population age 25 and older: 432,914
Category	Count ± MOE	Share ± MOE (pp)	Kentucky	U.S.
Less than high school graduate	42,169 ±1,962	9.7% ±0.5 pp	11.1%	10.4%
High school graduate or equivalency	118,951 ±2,740	27.5% ±0.6 pp	32.6%	26.0%
Some college, no degree	88,461 ±2,362	20.4% ±0.5 pp	19.7%	19.1%
Associate’s degree	37,077 ±1,474	8.6% ±0.3 pp	9.0%	8.8%
Bachelor’s degree	85,782 ±2,371	19.8% ±0.5 pp	16.2%	21.6%
Graduate or professional degree	60,474 ±1,941	14.0% ±0.4 pp	11.3%	14.1%

The denominator excludes residents under 25. Each person is counted in the highest attainment category they completed. This table does not measure the quality of local schools or the education level of every current student.

Residence one year earlier

Geographic mobility · B07003 · ACS 2020–2024 Population age 1 and older: 623,765
Category	Count ± MOE	Share ± MOE (pp)	Kentucky	U.S.
Same house	537,999 ±3,397	86.3% ±0.5 pp	87.5%	87.7%
Moved within same county	54,986 ±2,840	8.8% ±0.5 pp	6.3%	6.3%
Moved from a different county in the same state	10,068 ±987	1.6% ±0.2 pp	3.4%	3.1%
Moved from a different state	15,159 ±1,686	2.4% ±0.3 pp	2.4%	2.3%
Moved from abroad	5,553 ±1,067	0.9% ±0.2 pp	0.4%	0.6%

These are respondents’ residence patterns one year before their survey response, pooled across the five-year window. They are not a net migration count for 2025. A person can move to a different house within the same city or county; moves within the same county should not automatically be interpreted as new arrivals to the city.

Health insurance, internet access and veterans

6.0% of Louisville/Jefferson County metro government (balance) residents (±0.3 percentage points) had no health insurance coverage when surveyed, compared with 6.0% in Kentucky and 8.4% nationally. 90.5% of households subscribe to broadband of any type, including cellular data plans. A subscription is not the same as available service: the FCC National Broadband Map shows providers at a specific address.

City, state and U.S. shares · ACS 2020–2024
Measure	Louisville/Jefferson County metro government (balance)	Kentucky	U.S.	Compared with Kentucky
People without health insurance Civilian noninstitutionalized population	6.0% ±0.3 pp	6.0%	8.4%	Not statistically different
Households with a broadband subscription Households	90.5% ±0.4 pp	88.6%	91.0%	Higher
Veterans Civilian population age 18 and older	6.1% ±0.3 pp	6.5%	6.2%	Lower

Reading and reusing the estimates

The Census table links above lead to the original detailed tables. Counts, source universes and uncertainty are retained in the source observation download for Louisville/Jefferson County metro government (balance) . Compare these figures with the same survey window; do not compare one city’s five-year estimate with another city’s annual estimate as though they measured the same period. For methods, see uncertainty and denominator calculations.

Read Louisville/Jefferson County metro government (balance) housing and cost context or return to the city profile.