Running for County Ballot Measure in California puts you in front of the full countywide voter file across every city in the county. Most winning county measure campaigns budget in the $50K–$1M+ range and rely on earned media, countywide mail, paid digital, and field in the largest cities. Filing goes through the county elections office; plan for the 88 days before the election to qualify, FPPC Form 410 within 10 days of crossing $2,000 in fundraising, and a ballot designation that holds up under challenge. Local Campaign Pros runs county measure campaigns end-to-end across every California county.