Arlington vs Mountlake Terrace

A side-by-side comparison of Arlington and Mountlake Terrace: population, income, housing, and more.

Arlington and Mountlake Terrace are places in Washington. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Mountlake Terrace has the higher population (21,419 vs 20,599 in Arlington). Mountlake Terrace has the higher median household income ($101,404 vs $84,919 in Arlington). Mountlake Terrace has the higher median home value ($606,100 vs $492,600 in Arlington).

Population, income & housing

	Arlington	Mountlake Terrace
Population	20,599	21,419
Median age	37.1 yrs	38.2 yrs
Median household income	$84,919	$101,404
Median home value	$492,600	$606,100
Median gross rent	$1,764	$1,966
Housing units	8,126	9,504
Homeownership rate	63.4%	56.1%
Bachelor's degree or higher	20.3%	41.9%
Unemployment rate	3.6%	4.9%

Trends (ACS 5-year, 2019–2023)

	Arlington	Mountlake Terrace
Population	19,483 → 20,599 (+5.7%)	21,210 → 21,419 (+1.0%)
Median household income	$82,626 → $84,919 (+2.8%)	$72,955 → $101,404 (+39.0%)
Median home value	$323,200 → $492,600 (+52.4%)	$392,600 → $606,100 (+54.4%)
Median gross rent	$1,341 → $1,764 (+31.5%)	$1,464 → $1,966 (+34.3%)

Arlington

Population

19,48320,599

Median household income

$82,626$84,919

Median home value

$323,200$492,600

Median gross rent

$1,341$1,764

Mountlake Terrace

Population

21,21021,419

Median household income

$72,955$101,404

Median home value

$392,600$606,100

Median gross rent

$1,464$1,966

Age & race/ethnicity

Age distribution (share)

	Arlington	Mountlake Terrace
Under 5	6.1%	4.6%
5 to 17	19.0%	13.1%
18 to 24	9.2%	7.2%
25 to 34	11.2%	18.3%
35 to 44	15.3%	16.1%
45 to 54	13.9%	10.5%
55 to 64	11.4%	13.3%
65 to 74	7.7%	9.3%
75 and over	6.2%	7.7%

Race & ethnicity (share)

	Arlington	Mountlake Terrace
White (non-Hispanic)	72.8%	60.7%
Black or African American	1.3%	3.6%
American Indian & Alaska Native	0.5%	0.4%
Asian	5.5%	10.3%
Native Hawaiian & Pacific Islander	0.3%	0.4%
Some other race	0.4%	0.5%
Two or more races	4.0%	6.9%
Hispanic or Latino	15.1%	17.2%

Educational attainment (age 25+)

Share of adults 25+

	Arlington	Mountlake Terrace
No high school diploma	9.1%	6.1%
High school graduate	31.1%	20.4%
Some college or associate's	39.5%	31.6%
Bachelor's degree	14.0%	27.1%
Graduate or professional degree	6.3%	14.8%

Commute to work

How workers get to work (share)

	Arlington	Mountlake Terrace
Drove alone	73.7%	61.9%
Carpooled	12.4%	8.7%
Public transit	0.8%	4.2%
Walked	1.5%	0.9%
Bicycle	0.2%	0.3%
Worked from home	11.1%	22.6%
Other means	0.3%	1.4%

Housing

Units in structure (share)

	Arlington	Mountlake Terrace
1-unit, detached	62.2%	49.4%
1-unit, attached	7.4%	5.4%
2 to 4 units	5.7%	6.9%
5 to 19 units	11.5%	18.1%
20 or more units	8.5%	18.4%
Mobile home & other	4.7%	2.0%

Poverty & households

	Arlington	Mountlake Terrace
Poverty rate	11.0%	8.0%
Average household size	2.71	2.33
Mean commute (minutes)	30	31
Median year structure built	1995	1971