Newmarket vs Portsmouth

A side-by-side comparison of Newmarket and Portsmouth: population, income, housing, and more.

Newmarket and Portsmouth are places in New Hampshire. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Portsmouth has the higher population (22,332 vs 5,730 in Newmarket). Portsmouth has the higher median household income ($105,756 vs $83,871 in Newmarket). Portsmouth has the higher median home value ($640,600 vs $364,800 in Newmarket).

Population, income & housing

	Newmarket	Portsmouth
Population	5,730	22,332
Median age	35.9 yrs	42.4 yrs
Median household income	$83,871	$105,756
Median home value	$364,800	$640,600
Median gross rent	$1,668	$1,778
Housing units	2,938	11,094
Homeownership rate	37.9%	52.1%
Bachelor's degree or higher	51.9%	63.4%
Unemployment rate	1.7%	2.1%

Trends (ACS 5-year, 2019–2023)

	Newmarket	Portsmouth
Population	5,660 → 5,730 (+1.2%)	21,775 → 22,332 (+2.6%)
Median household income	$68,500 → $83,871 (+22.4%)	$83,923 → $105,756 (+26.0%)
Median home value	$255,400 → $364,800 (+42.8%)	$425,600 → $640,600 (+50.5%)
Median gross rent	$1,278 → $1,668 (+30.5%)	$1,305 → $1,778 (+36.2%)

Newmarket

Population

5,6605,730

Median household income

$68,500$83,871

Median home value

$255,400$364,800

Median gross rent

$1,278$1,668

Portsmouth

Population

21,77522,332

Median household income

$83,923$105,756

Median home value

$425,600$640,600

Median gross rent

$1,305$1,778

Age & race/ethnicity

Age distribution (share)

	Newmarket	Portsmouth
Under 5	5.7%	4.1%
5 to 17	7.7%	10.8%
18 to 24	8.8%	7.5%
25 to 34	26.1%	16.9%
35 to 44	14.9%	13.4%
45 to 54	12.3%	11.2%
55 to 64	11.0%	15.2%
65 to 74	10.6%	10.3%
75 and over	2.9%	10.6%

Race & ethnicity (share)

	Newmarket	Portsmouth
White (non-Hispanic)	88.9%	86.7%
Black or African American	1.0%	0.7%
American Indian & Alaska Native	0.0%	0.0%
Asian	2.7%	3.9%
Native Hawaiian & Pacific Islander	0.0%	0.0%
Some other race	0.1%	1.6%
Two or more races	5.4%	3.4%
Hispanic or Latino	1.9%	3.5%

Educational attainment (age 25+)

Share of adults 25+

	Newmarket	Portsmouth
No high school diploma	0.8%	2.4%
High school graduate	12.9%	16.8%
Some college or associate's	34.4%	17.4%
Bachelor's degree	31.4%	41.7%
Graduate or professional degree	20.5%	21.7%

Commute to work

How workers get to work (share)

	Newmarket	Portsmouth
Drove alone	75.5%	67.0%
Carpooled	4.1%	4.3%
Public transit	0.6%	1.2%
Walked	5.6%	5.0%
Bicycle	0.0%	0.5%
Worked from home	14.2%	20.7%
Other means	0.0%	1.3%

Housing

Units in structure (share)

	Newmarket	Portsmouth
1-unit, detached	26.9%	39.7%
1-unit, attached	12.6%	9.0%
2 to 4 units	11.9%	16.5%
5 to 19 units	17.5%	19.3%
20 or more units	28.7%	13.6%
Mobile home & other	2.4%	2.0%

Poverty & households

	Newmarket	Portsmouth
Poverty rate	6.6%	5.5%
Average household size	2.01	2.07
Mean commute (minutes)	27	22
Median year structure built	1982	1958