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Londonderry, NH

Full City Profile · New Hampshire · Rockingham County County

3.8 /5.0
B+ Good
12,307 Population 1,007/sq mi density
$113,109 Median Income $50,833 per capita
$433,100 Home Value $596,462 Zillow
$1,917 Median Rent 32.9% income on rent
48°F Avg Temperature 246 sunny days/yr
75 Violent Crime/100K 651 property/100K
B+
Overall
3.8 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.8 / 5.0
$113,109 median income, 3.2% unemployment
A+
Affordability
4.5 / 5.0
$433,100 home value, $1,917/mo rent
F
Safety
1.0 / 5.0
75 violent crimes/100K
A+
Education
4.7 / 5.0
46.1% bachelor's degree or higher

Change Over Time (2013–2023)

Population Change
+14.2%
10,778 → 12,307
over 10 years
Annual Pop. Growth
+1.34%
Compound annual growth rate
Median Income Change
+27.8%
$88,487 → $113,109
nominal, not inflation-adjusted
Annual Income Growth
+2.49%
Compound annual growth rate

Population Over Time

Total population for Londonderry across each available Census ACS release.

Median Household Income Over Time

Median household income reported by U.S. Census ACS. Values are nominal (not adjusted for inflation).

Projected 2030

Simple projections extrapolating the 2013–2023 compound annual growth rate forward. These are mathematical extensions of recent trends, not forecasts — real outcomes depend on migration, policy and economic shifts.

Projected Population 2030
13,509
+1,202 from 2023 (12,307)
Projected Median Income 2030
$134,359
+$21,250 from 2023 ($113,109)

Year-by-Year Detail

Year Population YoY % Median Income YoY %
2013 10,778 $88,487
2015 10,729 -0.5% $89,643 +1.3%
2017 11,313 +5.4% $87,652 -2.2%
2019 11,841 +4.7% $97,596 +11.3%
2021 11,955 +1% $107,401 +10%
2023 12,307 +2.9% $113,109 +5.3%
Source: U.S. Census ACS 5-Year Estimates (Data Commons). Home value and rent are not yet available historically.