New Hampshire's 21st State Senate district

New Hampshire's 21st State Senate district is one of 24 districts in the New Hampshire Senate. It has been represented by Democrat Rebecca Perkins Kwoka since 2020, succeeding fellow Democrat Martha Fuller Clark.

Geography
District 21 covers parts of Rockingham and Strafford Counties. The district is located entirely within New Hampshire's 1st congressional district. It borders the state of Maine.

Rockingham County - 11% of county


 * Portsmouth
 * New Castle
 * Newington
 * Newfields
 * Newmarket

Strafford County - 17% of county


 * Durham
 * Madbury
 * Lee

Federal and statewide results
Results are of elections held under 2022 district lines.

Historical election results
The following result occurred prior to 2022 redistricting, and thus were held under different district lines.