California began last month with nearly 17.3 million voters on the rolls, according to an updated tally released Thursday by the Secretary of State’s Office.

Democratic registration ticked up from January, from 43.1 percent of voters in January to 43.7 percent as of April 8. Republican registration declined from 27.6 percent to 27.5 percent of voters. The share of no-party preference voters also dropped slightly, from 24 percent in January to 23.9 percent as of April 8.

The largest Democratic gain was in Humboldt County, where the party’s share of registrants increased by 1.8 percentage points. Amador County had the largest increase in Republican registration, 1.4 percentage points.

Republican registration, meanwhile, ranks third behind registered Democrats and no-party preference voters in 177 of California’s 482 cities. Democratic registration trails Republican and no-party preference voters in just eight cities, the largest of which is 13,000-voter Ridgecrest, in Kern County.

The deadline to register for the June 7 primary election is May 23. Secretary of State Alex Padilla will release updated registration totals soon after.