2016Final results
2016 election for California's 16th District
U.S. House · California
Jim Costa (D) won with 58.0% of the vote, defeating Johnny M. Tacherra (R) by 16.1 points.
Jim CostaDemocrat · winner
58.0%97,473
Johnny M. TacherraRepublican
42.0%70,483
167,956 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 4:52 AM ET
The seat over time
D − R margin in this seat's races around 2016
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 4:52 AM ET
Money in this race
Each line compares the two campaigns on one scale.
Jim CostaJohnny M. Tacherra
$1.8M
Raised by the campaign
$547.4K
$1.8M
Spent by the campaign
$548.9K
$616.7K
Cash on hand
$234
Campaign money: FEC, through Dec 31, 2016.
Source: FEC campaign filingsUpdated Dec 31, 2016