Lake Grove, New York demographics

Lake Grove, NY demographics: median age 40.1; 43.2% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Lake Grove village, New York · Incorporated village · GEOID 3640530. The survey estimates a population of 11,061 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Lake Grove is 40.1 years, with a 90% margin of error of 3.2 years. There are 3,775 households (±266). 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	40.1 ±3.2	39.8 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 11,061
Category	Count ± MOE	Share ± MOE (pp)	New York	U.S.
Under 18	2,493 ±521	22.5% ±4.7 pp	20.5%	22.0%
18–34	2,339 ±346	21.1% ±3.1 pp	23.1%	22.8%
35–64	4,283 ±504	38.7% ±4.6 pp	38.5%	38.0%
65 and older	1,946 ±275	17.6% ±2.5 pp	17.9%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 11,061
Category	Count ± MOE	Share ± MOE (pp)	New York	U.S.
Male	5,731 ±336	51.8% ±3.0 pp	48.8%	49.5%
Female	5,330 ±344	48.2% ±3.1 pp	51.2%	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: 11,061
Category	Count ± MOE	Share ± MOE (pp)	New York	U.S.
White alone	8,154 ±715	73.7% ±6.5 pp	55.2%	61.0%
Black or African American alone	150 ±122 · low precision	1.4% ±1.1 pp · low precision	14.4%	12.2%
American Indian and Alaska Native alone	13 ±22 · low precision	0.1% ±0.2 pp · low precision	0.6%	0.9%
Asian alone	1,214 ±532	11.0% ±4.8 pp	9.1%	6.0%
Native Hawaiian and Other Pacific Islander alone	0 ±21 · low precision	0.0% ±0.2 pp · low precision	0.0%	0.2%
Some other race alone	397 ±214 · low precision	3.6% ±1.9 pp · low precision	10.4%	7.1%
Two or more races	1,133 ±599 · low precision	10.2% ±5.4 pp · low precision	10.3%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 11,061
Category	Count ± MOE	Share ± MOE (pp)	New York	U.S.
Not Hispanic or Latino	9,764 ±630	88.3% ±5.7 pp	80.2%	80.7%
Hispanic or Latino	1,297 ±631	11.7% ±5.7 pp	19.8%	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: 3,775
Category	Count ± MOE	Share ± MOE (pp)	New York	U.S.
Married-couple family	2,012 ±205	53.3% ±3.9 pp	42.5%	46.9%
Other family: male householder, no spouse present	291 ±174 · low precision	7.7% ±4.6 pp · low precision	5.2%	5.1%
Other family: female householder, no spouse present	407 ±131	10.8% ±3.4 pp	13.7%	12.2%
Nonfamily: householder living alone	830 ±227	22.0% ±5.8 pp	31.1%	28.7%
Nonfamily: householder not living alone	235 ±85	6.2% ±2.2 pp	7.6%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 3,775
Category	Count ± MOE	Share ± MOE (pp)	New York	U.S.
Households with people under 18	1,204 ±173	31.9% ±4.0 pp	27.3%	29.5%
Households without people under 18	2,571 ±369	68.1% ±8.5 pp	72.7%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 3,775
Category	Count ± MOE	Share ± MOE (pp)	New York	U.S.
One-person nonfamily households	830 ±227	22.0% ±5.8 pp	31.1%	28.7%
Two-person households	984 ±189	26.1% ±4.6 pp	31.5%	33.8%
Three-person households	644 ±193	17.1% ±5.0 pp	15.5%	15.3%
Four-person households	765 ±151	20.3% ±3.7 pp	12.4%	12.6%
Five-person households	399 ±177	10.6% ±4.6 pp	5.6%	5.9%
Six-person households	136 ±71 · low precision	3.6% ±1.9 pp · low precision	2.2%	2.2%
Seven or more people	17 ±30 · low precision	0.5% ±0.8 pp · low precision	1.7%	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: 11,061
Category	Count ± MOE	Share ± MOE (pp)	New York	U.S.
Native	9,388 ±353	84.9% ±3.2 pp	77.2%	85.9%
Foreign born	1,673 ±358	15.1% ±3.2 pp	22.8%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 10,615
Category	Count ± MOE	Share ± MOE (pp)	New York	U.S.
English only	8,729 ±482	82.2% ±4.3 pp	69.1%	77.7%
Spanish	278 ±132	2.6% ±1.2 pp	14.8%	13.6%
French, Haitian, or Cajun	19 ±25 · low precision	0.2% ±0.2 pp · low precision	1.5%	0.7%
German or other West Germanic	5 ±8 · low precision	0.0% ±0.1 pp · low precision	1.5%	0.5%
Russian, Polish, or other Slavic	83 ±81 · low precision	0.8% ±0.8 pp · low precision	2.0%	0.7%
Other Indo-European	821 ±305	7.7% ±2.9 pp	4.0%	2.0%
Korean	118 ±117 · low precision	1.1% ±1.1 pp · low precision	0.5%	0.3%
Chinese, including Mandarin and Cantonese	170 ±135 · low precision	1.6% ±1.3 pp · low precision	3.2%	1.1%
Vietnamese	0 ±21 · low precision	0.0% ±0.2 pp · low precision	0.1%	0.5%
Tagalog, including Filipino	70 ±55 · low precision	0.7% ±0.5 pp · low precision	0.4%	0.6%
Other Asian and Pacific Island	108 ±75 · low precision	1.0% ±0.7 pp · low precision	0.9%	1.1%
Arabic	146 ±161 · low precision	1.4% ±1.5 pp · low precision	0.7%	0.5%
Other and unspecified	68 ±70 · low precision	0.6% ±0.7 pp · low precision	1.3%	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: 7,509
Category	Count ± MOE	Share ± MOE (pp)	New York	U.S.
Less than high school graduate	406 ±133	5.4% ±1.8 pp	12.0%	10.4%
High school graduate or equivalency	2,348 ±406	31.3% ±5.1 pp	24.3%	26.0%
Some college, no degree	999 ±254	13.3% ±3.3 pp	14.6%	19.1%
Associate’s degree	514 ±134	6.8% ±1.7 pp	8.8%	8.8%
Bachelor’s degree	1,834 ±363	24.4% ±4.6 pp	22.4%	21.6%
Graduate or professional degree	1,408 ±264	18.8% ±3.4 pp	17.9%	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: 10,887
Category	Count ± MOE	Share ± MOE (pp)	New York	U.S.
Same house	10,142 ±241	93.2% ±2.0 pp	90.1%	87.7%
Moved within same county	444 ±159	4.1% ±1.5 pp	5.1%	6.3%
Moved from a different county in the same state	133 ±64	1.2% ±0.6 pp	2.6%	3.1%
Moved from a different state	137 ±127 · low precision	1.3% ±1.2 pp · low precision	1.5%	2.3%
Moved from abroad	31 ±28 · low precision	0.3% ±0.3 pp · low precision	0.7%	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

4.0% of Lake Grove residents (±2.7 percentage points) had no health insurance coverage when surveyed, compared with 5.1% in New York and 8.4% nationally. 96.4% 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	Lake Grove	New York	U.S.	Compared with New York
People without health insurance Civilian noninstitutionalized population	4.0% ±2.7 pp · low precision	5.1%	8.4%	Not statistically different
Households with a broadband subscription Households	96.4% ±9.2 pp	90.8%	91.0%	Not statistically different
Veterans Civilian population age 18 and older	2.8% ±1.0 pp	3.7%	6.2%	Not statistically different

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 Lake Grove . 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 Lake Grove housing and cost context or return to the city profile.