Highest British population share, New Hampshire counties

New Hampshire counties ranked by the share of all residents who are British ancestry (2024 American Community Survey). A concentration measure: British residents as a percentage of total population. This list covers the 10 counties in New Hampshire that qualify, ranked against each other statewide. The median across all 10 is 0.5%. Biggest climber in the top 100 since 2020: Carroll County, NH, up 6 places to #2.