Ada County Opens Nine Early Voting Sites May 4 Ahead of May 19 Idaho Primary Election
Boise, Idaho — Ada County voters will have nine locations to cast ballots early ahead of the May 19 Primary Election, with early voting opening Monday, May 4. The Ada County Elections office has expanded access this cycle, adding two new sites to the early voting network as the Treasure Valley’s growing population continues to drive demand for accessible polling options.
Early Voting Hours and Locations in Ada County
Early voting in Ada County will be available weekdays from May 4 through May 15, with polls open from 8 a.m. to 5 p.m. daily. Voters are not required to vote at a specific location — any eligible voter may cast a ballot at any of the nine participating early voting sites, offering flexibility for working families and commuters across the county.
Two new early voting locations have been added for this election cycle: Lake Hazel Library and Orchard Park Library. The addition of these sites reflects Ada County’s continued effort to bring polling access closer to residents across Boise’s expanding neighborhoods and surrounding communities. Libraries have become a cornerstone of Ada County’s early voting infrastructure, providing familiar, accessible locations throughout the region.
Same-Day Registration Available at All Sites
Ada County voters who are not yet registered to vote can register and cast a ballot on the same visit at any early voting location. To do so, voters must bring proper photo ID and proof of residence. This same-day registration option ensures that eligible Idaho residents who may have missed prior registration deadlines can still participate in the May 19 primary.
Election integrity advocates and local officials alike have pointed to photo ID and proof-of-residence requirements as common-sense protections that safeguard the legitimacy of Idaho’s elections while still allowing first-time or newly relocated voters to participate. Ada County’s growing population — driven in part by a surge in residents relocating to Boise, Meridian, and surrounding communities — makes accurate voter registration rolls increasingly important. Meridian in particular has seen a surge in new residents, as buyer demand for homes in the area continues to climb, making updated voter access infrastructure a timely priority for Ada County election officials.
Impact on Ada County Residents and Voters
The two-week early voting window gives Ada County residents a practical alternative to Election Day lines. Whether commuting from Meridian, Kuna, Eagle, or Star, voters across Ada County can choose the timing and location that works best for their schedule during the May 4–15 window. Weekday-only hours mean voters should plan accordingly, as early voting sites will not be open on weekends.
The expansion to nine sites — up from previous cycles — signals that Ada County Elections is responding to the realities of a rapidly growing region. As the Treasure Valley continues to attract new residents and businesses, election infrastructure must keep pace to ensure every eligible voter has a reasonable path to the ballot box without undue burden on any single site or neighborhood.
Ada County’s primary election covers a range of local, state, and federal races that will shape representation and policy for Boise and surrounding communities in the years ahead. Participation in primary elections often determines outcomes in Idaho’s heavily competitive local races, making early voting access a meaningful factor in overall turnout.
What Comes Next
Early voting runs weekdays, May 4 through May 15, from 8 a.m. to 5 p.m. at all nine Ada County early voting locations, including the two newly added library sites — Lake Hazel Library and Orchard Park Library. Election Day is Tuesday, May 19.
Voters can find a complete list of all nine early voting sites, verify their registration status, and get additional information about the May primary election at the official Ada County Elections website: www.adacountyelections.gov.
Ada County residents with questions about their registration, polling locations, or voting eligibility are encouraged to visit the elections office website or contact Ada County Elections directly before May 19.