Missouri's 15th Senate district

Missouri's 15th State Senate district
Senator	David Gregory R – Chesterfield
Demographics	77%  White 2%  Black 4%  Hispanic 10%  Asian 6%  Multiracial
Population (2023)	184,408 [1]

Missouri's 15th Senatorial District is one of 34 districts in the Missouri Senate. The district has been represented by Republican David Gregory since 2025. ^{[2] [3]}

Geography

The district is based in the St. Louis metropolitan area. The district is in southwestern St. Louis County, including the cities of Ballwin, Chesterfield, Ellisville, Manchester, Town & Country, and Wildwood. ^{[4] [2]} The district is also home to Maryville University, Missouri Botanical Garden's Sophia M. Sachs Butterfly House in Faust Park, and Castlewood State Park.

Election Results (1996-2024)

1996

Missouri's 15th Senatorial District Election (1996) ^[5]

Party		Candidate	Votes	%
	Republican	Walt Mueller	45,049	57.63
	Democratic	Patricia D. Gray	31,748	40.61
	Libertarian	Matthew W. Peters	1,372	1.76
Total votes			78,169	100.00

2000

Missouri's 15th Senatorial District Election (2000) ^[6]

Party		Candidate	Votes	%
	Republican	Michael R. Gibbons	49,823	59.41
	Democratic	Marjorie M. Reinhart	34,045	40.59
Total votes			83,868	100.00
	Republican hold

2004

Missouri's 15th Senatorial District Election (2004) ^[7]

Party		Candidate	Votes	%
	Republican	Michael R. Gibbons (incumbent)	48,876	51.90
	Democratic	Jeanne Kirkton	43,647	46.35
	Libertarian	Frank Gilmour	925	0.98
	Green	Lydia Lewis	720	0.76
Total votes			94,168	100.00
	Republican hold

2008

Missouri's 15th Senatorial District Election (2008) ^[8]

Party		Candidate	Votes	%
	Republican	Eric Schmitt	51,366	54.74
	Democratic	James Trout	42,469	45.26
Total votes			93,835	100.00
	Republican hold

2012

Missouri's 15th Senatorial District Election (2012) ^[9]

Party		Candidate	Votes	%
	Republican	Eric Schmitt (incumbent) [10]	77,745	100.00
Total votes			77,745	100.00
	Republican hold

2016

Missouri's 15th Senatorial District Election (2016) ^[11]

Party		Candidate	Votes	%
	Republican	Andrew Koenig	62,988	61.03
	Democratic	Stephen Eagleton	40,193	38.94
	Write-In	Richard Magee	33	0.03
Total votes			103,214	100.00
	Republican hold

2020

Missouri's 15th Senatorial District Election (2020) ^{[12] [13]}

Party		Candidate	Votes	%
	Republican	Andrew Koenig (incumbent)	61,172	53.99
	Democratic	Deb Lavender	52,132	46.01
Total votes			113,304	100.00
	Republican hold

2024

Missouri's 15th Senatorial District Election (2024) ^[14]

Party		Candidate	Votes	%
	Republican	David Gregory	56,093	51.62
	Democratic	Joe Pereles	50,841	46.79
	Libertarian	Jeff Coleman	1,733	1.60
Total votes			108,667	100.00
	Republican hold

Statewide Election Results

Year	Office	Results
2008	President	McCain 59.1 – 40.1%
2012	President	Romney 64.6 – 35.4%
2016	President	Trump 55.2 – 40.0%
	Senate	Blunt 53.8 – 43.4%
	Governor	Greitens 56.0 – 41.7%
2018	Senate	Hawley 52.3 – 46.1%
2020	President	Trump 50.9 – 47.6%
	Governor	Parson 53.3 – 45.2%

Source: ^[15]

References

1. U.S. Census Bureau (2023). American Community Survey 5-year estimates. Retrieved from Census Reporter Profile page for Missouri State Senate District 15, MO
2. "Senator David Gregory". Missouri Senate.
3. Keller, Rudi (January 28, 2025). "Missouri bill putting a bounty on undocumented immigrants faces fierce resistance". Missouri Independent.
4. "Map of District 15" (PDF). Missouri Senate.
5. 1996 General Election Results
6. 2000 General Election Results
7. 2004 General Election Results
8. 2008 General Election Results
9. 2012 General Election Results
10. Griffin, Marshall (May 1, 2014). "Eric Schmitt Shares Son's Medical Saga In Support Of Bill Allowing Hemp Oil Use In Missouri". stlpr.
11. 2016 General Election Results
12. 2020 General Election Results
13. "2020 Missouri State Senate Election Results". Des Moines Register.
14. 2024 General Election Results
15. "DRA 2020". Daves Redistricting. Retrieved February 27, 2025.