People of Mountainside, New Jersey
Officials from public records, leaders and professionals by their own consent. Nobody under 18 is listed. Official contact details only.
Nobody is listed for Mountainside yet.
Some people choose to be shown to signed-in members only.
Districts that include Mountainside
- Congressional District 7 (NJ-7)all of Mountainside
- Assembly District 21all of Mountainside
- State Senate District 21all of Mountainside
Shares are of the town’s land area within each district’s boundary, from the Census Bureau’s files; a few percent either way is the two files’ edges.
Sources: Census cartographic boundaries 2025: congressional districts, 119th Congress, retrieved November 14, 2026; Census cartographic boundaries 2025: state legislative districts, upper chamber, state 34, retrieved November 14, 2026; Census cartographic boundaries 2025: state legislative districts, lower chamber, state 34, retrieved November 14, 2026.