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The total population of Merrimack County is estimated to be 153,918 with 76,723 males (49.85%) and 77,195 females (50.15%). There are 472 more females than males in Merrimack County.
The median household income in Merrimack County was $89,129 in 2021, which marked an an increase of 815(0.92%) from $88,314 in 2020. This income is 119.47% of the U.S. median household income of $74,606 (all incomes in 2022 inflation-adjusted dollars).
Per the latest American Community Survey by the Census Bureau, Merrimack County sees its highest median household income among householders in the age group of 45 to 64 years old, at $112,653. Overall, the median household income for the county of Merrimack County stands at $84,690.
In Merrimack County, the median income for all workers aged 15 years and older, regardless of work hours, was $53,128 for males and $35,914 for females. However, when specifically considering full-time, year-round workers within the same age group, the median income was $72,383 for males and $53,921 for females.
In Merrimack County, the demographic landscape is diverse, spanning 5 distinct racial categories among households. Among these, Some Other Race households have the highest median household income at $215,310, while Black or African American households represent the opposite end with the lowest median household income of $56,402.
In 2022, the population of Merrimack County was 156,020, a 0.92% increase year-by-year from 2021. Previously, in 2021, Merrimack County's population was 154,591, an increase of 0.37% compared to a population of 154,022 in 2020.
The median age in Merrimack County, NH is 43.0, as per 2021 ACS 5-Year Estimates. Of the total population, 15.44% were under the age of 15, 18.84% aged 15 to 29, 47.37% aged 30 to 64, 16.26% aged 65 to 84, and 2.10% were 85 years of age and older.
Racial distribution of Merrimack County population: 92.74% are White, 1.60% are Black or African American, 0.32% are American Indian and Alaska Native, 1.94% are Asian, 0.01% are Native Hawaiian and other Pacific Islander, 0.39% are some other race and 3% are multiracial.