Voter file loaded July 30, 2026 · figures are from that file, held as a fixed record
Ottawa County, Michigan has 237,377 active registered voters across 98 precincts, as of August 2026.
Party registration
Michigan doesn't register voters by party, so there's no party breakdown to show. Party lean is usually inferred from primary participation; that data is in the voter file and available inside Motion51.
Most reliable-voting precincts
| # | Precinct | Active voters | Supervoters | Supervoter % |
|---|---|---|---|---|
| 1 | JAMESTOWN TOWNSHIP P2 | 1,842 | 1,279 | 69.44% |
| 2 | GEORGETOWN TOWNSHIP P17 | 773 | 512 | 66.24% |
| 3 | GRAND HAVEN CITY P2 | 1,960 | 1,298 | 66.22% |
| 4 | GEORGETOWN TOWNSHIP P15 | 2,690 | 1,767 | 65.69% |
| 5 | BLENDON TOWNSHIP P1 | 1,972 | 1,281 | 64.96% |
| 6 | GRAND HAVEN TOWNSHIP P3 | 2,236 | 1,444 | 64.58% |
| 7 | PORT SHELDON TOWNSHIP P1 | 2,565 | 1,656 | 64.56% |
| 8 | ZEELAND TOWNSHIP P4 | 1,629 | 1,050 | 64.46% |
| 9 | GEORGETOWN TOWNSHIP P12 | 2,420 | 1,553 | 64.17% |
| 10 | HOLLAND TOWNSHIP P5 | 2,452 | 1,570 | 64.03% |
Supervoters are active registered voters who cast a ballot in at least 3 of the last 4 November general elections (2018–2024). Percentages are precinct totals from the official state voter file — no individual voter information is shown. Precincts with fewer than 400 active voters are excluded.
How Ottawa County voted for president
Election results are public records.
Ottawa County at a glance.
Ottawa County had an estimated 306,235 residents in July 2024, the seventh most populous of Michigan's 83 counties, up 3.4% since the 2020 census. Of those, 238,135 are 18 or older, the voting-age population, and 17.6% are 65 or older. Its 237,377 active registered voters equal about 99.7% of that voting-age population.
It covers 564 square miles of land (543 people per square mile). The largest towns and cities are Georgetown (55,552), Holland (40,521), Holland (27,092), Allendale (26,941) and Grand Haven (19,647). The American Community Survey (2020-2024) puts it at a median age of 36.5, a median household income of $90,502, 38.9% of adults 25 and older holding a bachelor's degree or higher and 79.3% of occupied homes owned by the people living in them.
In 2024, 178,402 votes were cast for president, about 74.9% of the voting-age population; the Democratic ticket took 39.0% and the Republican ticket 59.5%. The two-party margin moved from R+23.9 in 2008 to R+20.5 in 2024.
- Population (2024 estimate)
- 306,235
- Population (2020 census base)
- 296,195
- Voting-age population (18+)
- 238,135
- Active voters per 100 adults
- 99.7
- Residents 65 and older
- 17.6%
- People per square mile
- 543
- Land area
- 564 sq mi
- Median age
- 36.5
- Median household income
- $90,502
- Adults 25+ with a bachelor's degree
- 38.9%
- Owner-occupied homes
- 79.3%
Largest towns and cities
- Georgetown 55,552
- Holland 40,521
- Holland 27,092
- Allendale 26,941
- Grand Haven 19,647
Presidential vote, 2008–2024
| Year | Democratic | Republican | Margin | Votes cast |
|---|---|---|---|---|
| 2024 | 39.0% | 59.5% | R+20.5 | 178,402 |
| 2020 | 38.4% | 59.8% | R+21.4 | 168,713 |
| 2016 | 31.8% | 62.2% | R+30.4 | 145,405 |
| 2012 | 32.5% | 66.7% | R+34.2 | 132,695 |
| 2008 | 37.3% | 61.2% | R+23.9 | 136,268 |
Sources: U.S. Census Bureau Vintage 2024 population estimates and 2024 Gazetteer; American Community Survey 2020–2024 5-year estimates; certified county presidential returns. Growth, density and turnout are simple arithmetic on those figures.
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