What are the richest counties in New Hampshire?

Rockingham County ($118,331), Hillsborough County ($103,545) and Merrimack County ($97,004) had the highest median household income in New Hampshire in the 2020–24 survey.

Data as of 2024 · updated November 5, 2026

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All 10 ranked New Hampshire counties

New Hampshire counties ranked by median household income
Rank	County	Median household income 2020–24	Change since 2016–20	Residents
1	Rockingham County	$118,331	+25.9%	324,077
2	Hillsborough County	$103,545	+26.1%	433,415
3	Merrimack County	$97,004	+24.5%	158,078
4	Belknap County	$92,783	+37.8%	65,147
5	Strafford County	$88,570	+21.9%	135,043
6	Grafton County	$88,261	+30.8%	93,225
7	Carroll County	$86,463	+29.2%	52,784
8	Cheshire County	$83,329	+28.8%	78,269
9	Sullivan County	$80,858	+26.8%	43,961
10	Coos County	$57,677	+17.8%	31,343

How this is ranked

Median household income from the Census Bureau's American Community Survey 5-year estimates (2020–24). Survey estimates carry margins of error, so counties a few hundred dollars apart may not really differ. Counties with fewer than 1,000 residents, or without a figure for the same period as the others, are not ranked.

Source: U.S. Census Bureau, American Community Survey 5-year estimates. Figures come from public federal statistics and are informational only, not investment advice. Check the source before relying on a number. Methodology: how ranks and figures are built. More on every layer: data sources and licences.

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Questions

Which county in New Hampshire has the highest median household income?

Rockingham County: $118,331, ahead of Hillsborough County ($103,545) and Merrimack County ($97,004), of 10 New Hampshire counties ranked.

How is this ranking calculated?

More county rankings for New Hampshire

Median household income in other states

Across the U.S.