Sorted by population.
| County | Population | Median HHI |
|---|---|---|
| Middlesex County MA |
1,574,534 | $135,958 |
| Essex County MA |
870,565 | $107,407 |
| Worcester County MA |
845,881 | $99,613 |
| Suffolk County MA |
753,678 | $94,338 |
| Norfolk County MA |
739,449 | $135,313 |
| Bristol County MA |
606,344 | $89,138 |
| Plymouth County MA |
529,859 | $114,443 |
| Hampden County MA |
474,427 | $72,664 |
| Barnstable County MA |
232,112 | $97,834 |
| Berkshire County MA |
130,854 | $76,111 |
| Hampshire County MA |
114,639 | $95,067 |
| Franklin County MA |
112,758 | $73,201 |
In alphabetical order; geographic adjacency layer planned for v1.1.
Every value drawn from the same federal-source warehouse that powers individual place profiles. See data sources for the full dictionary, methodology for metric definitions.