Armonk vs Thornwood

A side-by-side comparison of Armonk and Thornwood: population, income, housing, and more.

Armonk and Thornwood are places in New York. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Thornwood has the higher population (4,405 vs 4,382 in Armonk). Armonk has the higher median household income ($245,500 vs $186,635 in Thornwood). Armonk has the higher median home value ($1,029,300 vs $654,600 in Thornwood).

Population, income & housing

	Armonk	Thornwood
Population	4,382	4,405
Median age	42.6 yrs	38.9 yrs
Median household income	$245,500	$186,635
Median home value	$1,029,300	$654,600
Median gross rent	—	$2,245
Housing units	1,489	1,509
Homeownership rate	92.9%	85.7%
Bachelor's degree or higher	80.0%	49.6%
Unemployment rate	2.0%	0.9%

Trends (ACS 5-year, 2019–2023)

	Armonk	Thornwood
Population	4,438 → 4,382 (-1.3%)	4,186 → 4,405 (+5.2%)
Median household income	$199,457 → $245,500 (+23.1%)	$124,750 → $186,635 (+49.6%)
Median home value	$906,000 → $1,029,300 (+13.6%)	$606,600 → $654,600 (+7.9%)
Median gross rent	$2,596 → $2,425 (-6.6%)	$1,722 → $2,245 (+30.4%)

Armonk

Population

4,4384,382

Median household income

$199,457$245,500

Median home value

$906,000$1,029,300

Median gross rent

$2,596$2,425

Thornwood

Population

4,1864,405

Median household income

$124,750$186,635

Median home value

$606,600$654,600

Median gross rent

$1,722$2,245

Age & race/ethnicity

Age distribution (share)

	Armonk	Thornwood
Under 5	7.2%	7.6%
5 to 17	17.5%	15.5%
18 to 24	4.8%	6.4%
25 to 34	9.1%	10.1%
35 to 44	15.4%	16.6%
45 to 54	12.3%	14.7%
55 to 64	16.9%	12.4%
65 to 74	9.2%	9.5%
75 and over	7.6%	7.3%

Race & ethnicity (share)

	Armonk	Thornwood
White (non-Hispanic)	68.6%	81.0%
Black or African American	3.2%	0.9%
American Indian & Alaska Native	0.0%	0.0%
Asian	10.1%	3.8%
Native Hawaiian & Pacific Islander	0.0%	0.0%
Some other race	4.0%	0.0%
Two or more races	3.0%	4.1%
Hispanic or Latino	11.0%	10.2%

Educational attainment (age 25+)

Share of adults 25+

	Armonk	Thornwood
No high school diploma	3.1%	7.9%
High school graduate	7.2%	17.5%
Some college or associate's	9.8%	25.0%
Bachelor's degree	44.1%	26.2%
Graduate or professional degree	35.9%	23.4%

Commute to work

How workers get to work (share)

	Armonk	Thornwood
Drove alone	56.3%	68.3%
Carpooled	3.4%	1.9%
Public transit	14.7%	10.5%
Walked	0.7%	1.2%
Bicycle	0.0%	0.0%
Worked from home	24.3%	17.6%
Other means	0.6%	0.5%

Housing

Units in structure (share)

	Armonk	Thornwood
1-unit, detached	79.9%	83.9%
1-unit, attached	9.2%	0.0%
2 to 4 units	1.9%	9.2%
5 to 19 units	4.7%	4.7%
20 or more units	4.3%	2.2%
Mobile home & other	0.0%	0.0%

Poverty & households

	Armonk	Thornwood
Poverty rate	5.4%	3.7%
Average household size	2.98	2.92
Mean commute (minutes)	37	30
Median year structure built	1982	1960