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City of Atwater · Statewide General Election

Mayor of Atwater

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On the ballot

This person would serve a 4-year term as Atwater's directly, citywide-elected Mayor -- president of the City Council, presiding officer at its meetings, and the city's ceremonial head, though with no veto power. Atwater runs under a council-manager government: an appointed City Manager handles day-to-day operations, while the Mayor and four district-elected Councilmembers set city ordinances, the budget, and land use for this Merced County city of about 31,970 residents (2020 Census).

Atwater's Mayor race is a two-candidate contest for a 4-year term: incumbent Mike Nelson, first elected in 2022 after three decades in local government including two terms as a Merced County Supervisor, faces challenger Roberto Montes-Yepez, a utility worker and artist making his first run for office.

Atwater, a Merced County city of about 31,970 residents per the 2020 Census, runs under a council-manager government: an appointed City Manager -- Janell Martin, hired to the post in August 2026 after 12 years with the city -- handles day-to-day operations, while a 5-member City Council sets ordinances, the budget, and land use. Unlike some California cities, Atwater's voters elect their Mayor directly and citywide, rather than having the Council choose one of its own members; the Mayor presides at Council meetings and serves as the city's ceremonial head but, per the city's own description of the office, "possesses no veto power." The other four Council seats are elected by district, two at a time on a staggered 4-year cycle -- Districts 3 and 4 are up this November alongside the Mayor; Districts 1 and 2 aren't up again until 2028.

Nelson, first elected Mayor in 2022, is seeking a second term. Montes-Yepez, who has not held elected office in Atwater before, filed with the county under the occupational ballot designation "Utility Worker / Artist" and did not file a candidate statement.

Mike Nelson

Mike Nelson is Atwater's incumbent Mayor, first elected in 2022 on a platform of economic growth, public safety, government transparency, and accountability. He brought three decades of Merced County public service to that campaign: two terms as a county supervisor after unseating incumbent Joe Rivero in 2002 (before later losing his own seat to Linn Davis), three years chairing Atwater's Planning Commission, and earlier stints as an Atwater firefighter, an Atwater Elementary School Board trustee, and a Mosquito Abatement District board member. He is married to Sylvia, a retired school district administrator, and the couple has two adult children and nine grandchildren living in Atwater.

Strengths

Two terms as a county supervisor, three years chairing the Planning Commission, and a first Mayoral term -- more institutional experience than a first-time candidate typically has.

Trade-offs

No coverage of his record since taking office in 2022 was found this session; the only detailed profile of him is his own 2022 campaign-launch story, not a review of his first term.

Keep in mind

His 2022 campaign committee was formally terminated per the city's own filings, and no active 2026 campaign-finance filing was found for this race -- see the financial note below.

Roberto Montes-Yepez

Roberto Montes-Yepez is a first-time candidate for Atwater Mayor. He filed with Merced County under the occupational ballot designation "Utility Worker / Artist" and did not file a candidate statement with his nomination papers. Beyond his name and that designation on the county's certified candidate list, no biography, campaign website, or news coverage was found for him this session, despite searches of the city's own site, the Merced County Times' archive, Ballotpedia, and general web search.

Strengths

None independently confirmed beyond a certified, qualified nomination filing with Merced County.

Trade-offs

No campaign website, news coverage, candidate statement, or prior public role was found for him this session -- the public record here is genuinely thin, not just under-covered.

Keep in mind

A record this thin isn't unusual for a first-time local candidate this early in a race; if he releases a platform or statement closer to the election, that material isn't reflected here yet.

Source review: Strong (89/100) · 7 cited sources

Official records anchor this contest, with several source types checked for context.

  • countyofmerced.com (opens in a new tab)Merced County -- official "November 3 2026 General Election -- All Contests -- Final Qualified Candidate List" (report CFMR009, printed 8/25/2026 3:26:53PM): confirms exactly three Atwater contests, all "On Ballot: Yes" -- ATWATER MAYOR (Roberto Montes-Yepez, "Utility Worker / Artist," no candidate statement filed; Mike Nelson, "Mayor / Business Owner," incumbent, statement filed 7/20/2026), ATWATER COUNCILMEMBER DISTRICT 3 (Shawn Conour, no ballot designation, no statement filed), and ATWATER COUNCILMEMBER DISTRICT 4 (Adam R Conour, no ballot designation, statement filed 7/27/2026).
  • atwater.org (opens in a new tab)City of Atwater -- own City Council page: names, in the city's own words, all five current members and their terms -- Mayor Mike Nelson (Nov. 2022-Nov. 2026), Mayor Pro Tem John Cale, District 1 (Nov. 2024-Nov. 2028), Kalisa Rochester, District 2 (Nov. 2024-Nov. 2028), Danny Ambriz, District 3 (Nov. 2022-Nov. 2026), and Brian Raymond, District 4 (Nov. 2022-Nov. 2026) -- and states the Mayor is directly, citywide-elected, is "president of the City Council" and presides at meetings, "possesses no veto power," and serves as "the official head of the City for ceremonial purposes," while the other four seats are elected by district.
  • mercedcountytimes.com (opens in a new tab)Merced County Times -- "Former Supervisor Nelson announces run for mayor of Atwater" (Apr. 14, 2022, by Jonathan Whitaker): profiles Mike Nelson's three decades of local service -- Atwater firefighter, Atwater Elementary School Board trustee, Mosquito Abatement District board, three years chairing the Atwater Planning Commission, two terms as a Merced County Supervisor (elected 2002 over Joe Rivero, later lost to Linn Davis), and the Merced County Association of Governments board -- his stated platform (economic growth, public safety, transparency, accountability), and his family (wife Sylvia, a retired school district administrator; two adult children and nine grandchildren in Atwater).
  • mercedcountytimes.com (opens in a new tab)Merced County Times -- "Atwater leaders approve new city manager appointment" (Aug. 26, 2026, by Jonathan Whitaker): reports the Atwater City Council hired Janell Martin, a 12-year city employee most recently serving as assistant city clerk/records coordinator and interim city manager, as the permanent City Manager -- independently confirming the council-manager government structure in place for this cycle.
  • en.wikipedia.org (opens in a new tab)Wikipedia, "Atwater, California": used narrowly for the dated 2020 Census population figure (31,970, up from 28,168 in 2010) and as an independent cross-check that Mike Nelson is the current Mayor.
  • atwater.org (opens in a new tab)City of Atwater -- own Campaign Filings page: hosts Form 460/410/700 documents only for the 2022 and 2024 election cycles -- including Mike Nelson's own 2022 mayoral committee ("Committee to Elect Mike Nelson Atwater Mayor 2022"), whose Form 410 termination statement (filed 6/30/2022) shows that committee was formally closed out after that race, and Kalisa Rochester's 2024 District 2 filings -- with no 2026-cycle filing posted for any of this cycle's four Atwater candidates as of this pass. Documents the absence of a current local financial-disclosure filing, not any candidate's actual finances.
  • cal-access.sos.ca.gov (opens in a new tab)California Secretary of State CAL-ACCESS -- committee/filer searches attempted for all four candidates (Mike Nelson, Roberto Montes-Yepez, Shawn Conour, Adam R Conour): every query returned no usable results, the same recurring bot-detection block documented elsewhere in this dataset -- and Cal-Access's documented scope covers state-level filings only, which excludes local candidates in any case.

Last updated September 1, 2026.