Median Age in Nantucket County, MA
ACS 2024 5-Year Estimates
42.4 years
Rank #1,372/3,222 · #6 in MA
57th
Nantucket 42.4 years
MA 40.0 years +6.0%
US 38.9 years +9.0%
Median Age Trend
Rankings →Percentile Rank Over Time
Year-over-Year Age Change
National Distribution
How Nantucket County's median age of 42.4 years compares to all 3,222 U.S. counties. Values range from 21.4 years to 86.2 years.
Distribution of Median Age Across All Counties
Ranking Context
Counties ranked closest to Nantucket County for median age.
Nearby Rankings
Full ranking →| #1,369 | Caldwell County, KY | 42.4 years |
| #1,370 | Lewis County, KY | 42.4 years |
| #1,371 | Union County, KY | 42.4 years |
| #1,372 | Nantucket County, MA | 42.4 years |
| #1,373 | Lenawee County, MI | 42.4 years |
| #1,374 | Sibley County, MN | 42.4 years |
| #1,375 | Clarke County, MS | 42.4 years |
About Median Age
Nantucket County, Massachusetts has a median age of 42.4 years, ranking #1,372 of 3,222 counties nationwide — 9.0% above the national value of 38.9 years. Within Massachusetts, it ranks #6 of 14. This places it in the 57th percentile nationally.
The median age of the total population. Source: U.S. Census Bureau, American Community Survey 2024 5-Year Estimates. All values are estimates derived from survey samples and are subject to margin of error. For more information, see our methodology.