2025 Nassau County Executive election

November 6, 2025


Nominee	Bruce Blakeman	Seth Koslow
Party	Republican	Democratic
Alliance	Conservative	Moderate Party

County Executive before election

Bruce Blakeman
Republican

Elected County Executive

TBD

Federal government

Presidential elections
1792 1796 1800 1804 1808 1812 1816 1820 1824 1828 1832 1836 1840 1844 1848 1852 1856 1860 1864 1868 1872 1876 1880 1884 1888 1892 1896 1900 1904 1908 1912 1916 1920 1924 1928 1932 1936 1940 1944 1948 1952 1956 1960 1964 1968 1972 1976 1980 1984 1988 1992 1996 2000 Dem 2004 Dem 2008 Dem GOP 2012 2016 Dem GOP 2020 Dem 2024 Dem GOP
U.S. Senate
1789 1791 1795 1796 sp 1797 Jan 1798 sp Aug 1798 sp Apr 1800 sp Nov 1800 sp 1801 1802 sp 1803 Feb 1804 sp Nov 1804 sp 1807 1809 1813 1815 1819–20 1821 1825–26 1827 1829 sp 1831 1833 1833 sp 1837 1839–40 1843 1845 sp 1849 1851 1855 1857 1861 1863 1867 1869 1873 1875 1879 1881 1881 sp 1885 1887 1891 1893 1897 1899 1903 1905 1909 1911 1914 1916 1920 1922 1926 1928 1932 1934 1938 1938 sp 1940 1944 1946 1949 sp 1950 1952 1956 1958 1962 1964 1968 1970 1974 1976 1980 1982 1986 1988 1992 1994 1998 2000 2004 2006 2010 2010 sp 2012 2016 2018 2022 2024
U.S. House
1789 1790 1791 1st sp 1793 1794 1796 1798 1799 1st sp 1800 1801 5th sp 1801 6th sp 1802 1803 6th sp 1803 7th sp 1804 1st sp 2nd and 3rd sp 1805 2nd and 3rd sp 1806 1808 12th sp 1810 2nd sp 1812 6th sp 1813 15th sp 1813 2nd sp 1814 1815 6th sp 1815 12th sp 1816 20th sp 21st sp 1817 4th sp 1818 1821 6th sp 1821 9th sp 1822 1823 28th sp 1824 1826 1827 29th sp 1828 5th sp 1830 6th sp 20th sp 1832 1834 1836 17th sp 30th sp 1838 1840 1841 26th May sp 26th Nov sp 1842 1844 1846 12th sp 1848 1850 1852 1854 12th sp 1856 1858 1859 4th sp 1860 31st sp 1862 1863 14th sp 1864 1866 1868 1870 1872 1874 1876 1878 1879 12th sp 1880 32nd sp 1881 9th sp 11th sp 22nd sp 1881 27th sp 1882 1884 1885 8th sp 1886 15th sp 1888 1889 6th sp 9th sp 27th sp 1890 1891 2nd sp 10th sp 1891 12th sp 22nd sp 1892 1894 14th sp 15th sp 1895 10th sp 1896 1897 3rd sp 1898 1899 34th sp 1900 1902 26th sp 1904 12th sp 1906 8th sp 1908 3rd sp 1910 1912 26th sp 1913 13th sp 20th sp 1914 1915 31st sp 1916 1917 15th sp 1918 7th sp 8th sp 21st sp 22nd sp 1920 14th sp 26th sp 1922 1923 11th sp 16th sp 19th sp 24th sp 32nd sp 1924 1926 1927 35th sp 1928 32nd sp 1929 21st sp 1930 18th sp 1931 7th sp 9th sp 1932 1933 34th sp 1934 1935 2nd sp 22nd sp 1936 1937 27th sp 17th sp 25th sp 1938 1939 34th sp 1940 14th sp 22nd sp 31st sp 1941 14th sp 17th sp 1942 1944 4th sp 11th sp 21st sp 1946 19th sp 1947 14th sp 1948 24th sp 1949 7th sp 10th sp 20th sp 1950 1952 5th sp 32nd sp 1954 1956 22nd sp 1958 1959 43rd sp 1960 23rd sp 1962 6th sp 1964 1966 17th sp 1968 13th sp 1970 1972 1974 1976 1978 18th sp 21st sp 1980 1982 1983 7th sp 1984 1986 6th sp 1988 1990 14th sp 18th sp 1992 17th sp 1994 1996 1997 13th sp 1998 6th sp 2000 2002 2004 2006 2008 2009 20th sp 23rd sp 2010 29th sp 2011 9th sp 26th sp 2012 2014 2015 11th sp 2016 2018 14th 25th sp 2020 22nd 27th sp 2022 19th sp 23rd sp 2024 3rd sp 26th sp

State government

New York gubernatorial elections
1777 1780 1783 1786 1789 1792 1795 1798 1801 1804 1807 1810 1813 1816 1817 1820 1822 1824 1826 1828 1830 1832 1834 1836 1838 1840 1842 1844 1846 1848 1850 1852 1854 1856 1858 1860 1862 1864 1866 1868 1870 1872 1874 1876 1879 1882 1885 1888 1891 1894 1896 1898 1900 1902 1904 1906 1908 1910 1912 1914 1916 1918 1920 1922 1924 1926 1928 1930 1932 1934 1936 1938 1942 1946 1950 1954 1958 1962 1966 1970 1974 1978 1982 1986 1990 1994 1998 2002 2006 2010 2014 2018 2022 2026
Attorney General elections
1982 1986 1990 1994 1998 2002 2006 2010 2014 2018 2022
State Comptroller elections
1986 1990 1994 1998 2002 2006 2010 2014 2018 2022
State Senate elections
2008 2010 2012 2014 2016 2018 2020 2022 2024
State Assembly elections
99th district, 2006 2008 2016 2018 2020 2022 2024
State elections by year
1811-LtGSE 1844 1846 1847-JSE 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1870–JSE 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1900 1902 1903 1904 1906 1907 1908 1910 1912 1913 1914 1916 1917 1918 1919 1920 1921 1922 1923 1924 1926 1927 1928 1930 1932 1933 1934 1936 1937 1938 1939 1940 1942 1943 1944 1946 1949 1950 1952 1953 1954 1956 1958 1959 1960 1962 1963 1964 1965 1966 1967 1968 1969 1970 1972 1973 1974 2002 2006 2008 2009 2010 2012 2016 2018 2020 2021 2022 2024

New York City

Mayoral elections
Pre-consolidation: 1850 ... 1854 1856 1857 1859 1861 ... 1886 1888 1890 1892 1894 Post-consolidation: 1897 1901 1903 1905 1909 1913 1917 1921 1925 1929 1932 1933 1937 1941 1945 1950 1953 1957 1961 1965 1969 1973 1977 1981 1985 1989 1993 1997 2001 2005 2009 2013 2017 2021 (Dem primary) 2025 (Dem primary)
City Council elections
Pre-consolidation: 1808 Post-consolidation: 1897 1899 1901 1903 1905 1907 1909 1911 1913 1915 1917 1919 1921 1923 1925 1927 1929 1931 1933 1935 1937 1939 1941 1943 1945 1949 1953 1957 1961 1965 1969 1973 1977 1981 1985 1989 1993 1997 2001 2005 2009 2013 2017 2021 2023 2025
Public Advocate elections
1897 1901 1905 1909 1913 1917 1921 1925 1929 1933 1937 1941 1945 1949 1953 1957 1961 1965 1969 1973 1977 1981 1985 1989 1993 1997 2001 2005 2009 2013 2017 2019 (special) 2019 2021 2025
Comptroller elections
1897 1901 1905 1909 1913 1917 1921 1925 1929 1933 1937 1941 1945 1949 1953 1957 1961 1965 1969 1973 1977 1981 1985 1989 1993 1997 2001 2005 2009 2013 2017 2021 2025
Borough president elections
1897 1901 1905 1909 1913 1917 1921 1925 1929 1933 1937 1941 1945 1949 1953 1957 1961 1965 1969 1973 1977 1981 1985 1989 1993 1997 2001 2005 2009 2013 2017 2021 2025
The Bronx Brooklyn Manhattan Queens Staten Island

The 2025 Nassau County Executive election will be held on November 4, 2025, to select the County Executive of Nassau County, New York. Incumbent Republican County Executive Bruce Blakeman, first elected in 2021, is seeking re-election to a second term. He was nominated by the Republican and Conservative parties, and his challenger in the general election is County Legislator Seth Koslow, who was nominated by the Democratic and Moderate parties.^[1]

General election

Candidates

Bruce Blakeman, incumbent County Executive^[2] (Republican, Conservative)^[1]
Seth Koslow, County Legislator^[3] (Democratic, Moderate)^[1]^[4]

Campaign

Koslow announced that he would challenge Blakeman on January 8, 2025, with endorsements from former County Executive Laura Curran, whom Blakeman defeated in 2021, and Congressman Tom Suozzi, who was County Executive from 2002 to 2009.^[5] Though Blakeman was at a financial disadvantage in his 2021 campaign,^[6] he outraised Koslow significantly in the first half of the year, raising $2 million to Koslow's $430,000 through July 15.^[7]

Despite President Donald Trump narrowly winning Nassau County in the 2024 presidential election,^[5] Koslow has attacked Blakeman over the effects of Trump's tariffs in the county, which Blakeman has defended,^[8] and over the effects of the Big Beautiful Bill on the county.^[9]

References

^ ^a ^b ^c "Candidate List". Nassau County Board of Elections. July 14, 2025. Retrieved July 28, 2025.
^ Fahrer, Casey (February 24, 2025). "Bruce Blakeman kickstarts re-election campaign for county executive". Long Island Press. Retrieved July 28, 2025.
^ Ostadan, Bahar (January 8, 2025). "Democratic Legis. Seth Koslow launches bid for Nassau County executive". Newsday. Retrieved July 28, 2025.
^ Oakes, Cameryn (May 5, 2025). "Moderate Party launches in Nassau County to reject extremism". Long Island Press. Retrieved July 28, 2025.
^ ^a ^b Nir, David; Singer, Jeff (January 10, 2025). "Trump just flipped Nassau County. Democrats think they can win it back". The Downballot. Retrieved July 28, 2025.
^ Nir, David; Singer, Jeff (July 21, 2025). "Morning Digest: How Democrats might stop the Ohio GOP from gerrymandering again". The Downballot. Retrieved July 28, 2025.
^ Oakes, Cameryn (July 24, 2025). "Bruce Blakeman outraises challenger Seth Koslow in Nassau county executive campaign". PoliticsNY. Retrieved July 28, 2025.
^ Ostadan, Bahar (June 11, 2025). "Democrat Seth Koslow rails over Nassau County Bruce Blakeman's support on Trump's tariffs". Newsday. Retrieved July 28, 2025.
^ Koslow, Seth I. (July 25, 2025). "Seth I. Koslow: Blakeman is silent as Trump's disastrous megabill fleeces Nassau". Nassau Herald. Retrieved July 28, 2025.

External links

(2024 ←) 2025 United States elections (→ 2026)
U.S. House	Arizona 7th sp Florida 1st sp 6th sp Tennessee 7th sp Texas 18th sp Virginia 11th sp
Governors	New Jersey Virginia (Lt. Gov)
Attorneys general	Virginia
Judicial	Louisiana Pennsylvania Washington Wisconsin Supreme Court
Other statewide elections	Georgia Public Service Commission sp Wisconsin State Superintendent
State legislatures	New Jersey Assembly Virginia House Special elections
Mayors	Albuquerque, NM Allentown, PA Annapolis, MD Atlanta, GA Birmingham, AL Boston, MA Buffalo, NY Cincinnati, OH Charlotte, NC Chattanooga, TN Cleveland, OH Columbia, SC Dayton, OH Detroit, MI Durham, NC Fort Worth, TX Garland, TX Greensboro, NC Gulfport, MS Hialeah, FL Hoover, AL Jackson, MS Jersey City, NJ Kansas City, KS Lansing, MI Miami, FL Minneapolis, MN Mobile, AL New Orleans, LA New York, NY Norman, OK Oakland, CA (special) Omaha, NE Pittsburgh, PA Plano, TX Saint Paul, MN San Antonio, TX Seattle, WA St. Louis, MO Topeka, KS Syracuse, NY Toledo, OH
Municipal	Anchorage, AK Birmingham, AL Council Boston, MA Council Charlotte, NC Council Cleveland, OH Council Columbus, OH Council Chesapeake, VA District of Columbia Council ward 8 sp Jacksonville, FL Council Madison, AL Miami, FL Council Minneapolis, MN Council Mobile, AL Council New Orleans, LA Council New York, NY Borough presidents Comptroller Council Public Advocate Civil Court Oklahoma City, OK Council Omaha, NE Council Philadelphia, PA Pittsburgh, PA St. Louis, MO Board of Aldermen Starbase, TX Incorporation election Tucson, AZ Council
County	Allegheny County, PA Council Bucks County, PA Dane County, WI Executive Delaware County, PA Erie County, PA Executive Erie County, NY Legislature Sheriff Hudson County, NJ Sheriff King County, WA Council Executive Proposition 1 Lehigh County, PA Executive Monroe County, NY Legislature Nassau County, NY Legislature Northampton County, PA Executive Oklahoma County, OK Commission sp Orange County, NY Executive Prince George's County, MD Executive sp Rensselaer County, NY Executive Suffolk County, NY Legislature Sheriff Westchester County, NY Executive Legislature Winnebago County, WI Executive Rockland County, NY Executive
States and territories	Alabama Alaska California Connecticut Delaware Florida Georgia Illinois Iowa Louisiana Maine Maryland Massachusetts Michigan Minnesota Missouri Mississippi New Jersey New Mexico New York Ohio Oklahoma Pennsylvania South Carolina Texas Virginia Washington Wisconsin
Ballot measures	California Proposition 50 Louisiana Amendment 4 Maine Question 1 Question 2 Ohio Issue 2 Texas Proposition 14 Wisconsin Question 1