One hundred and three (1.64%) of the 6,278 state legislative races that took place in 2022 were decided by fewer than 100 votes. Ninety-eight of the races were in state house chambers, and five were in a state senate chamber.

Of the 88 state legislative chambers that held elections in 2022, 31 (35.2%) had at least one race that was decided by fewer than 100 votes.

The New Hampshire House of Representatives had 36 races decided by fewer than 100 votes—more than any other chamber. As of 2020, there were, on average, 3,444 people in each New Hampshire House district, making them the smallest state legislative districts in the country. The Maine House of Representatives and Vermont House of Representatives each had five races decided by fewer than 100 votes—the second-highest number after the New Hampshire House.

Most of the races took place in districts with small population sizes compared to the rest of the country. Sixty-eight races (66%) were in districts with a population of less than 25,000. Districts that size made up 26.3% of all state legislative districts as of 2020.

In 2020, 30 races across 14 chambers were decided by this margin. The New Hampshire House had the most (11), followed by the Vermont House (five). Twenty-four races (80%) were in districts with a population of less than 25,000.