Colorado State Senate District 18
Safe Democratic — shifted 4.7pp toward Democrats in 2024 — 164K residents
Colorado State Senate District 18 is a state senate district that has a population of 164,205. In the 2024 presidential election, it voted Democratic with a margin of D+68.0. Akashic Edge tracks 5 presidential elections here, dating back to 2008.
| Year | Dem % | Rep % | Margin | Swing |
|---|---|---|---|---|
| 2024 | 82.6% | 14.6% | D+68.0 | D+4.7 |
| 2020* | 80.7% | 17.4% | D+63.3 | R+0.3 |
| 2016* | 78.4% | 14.8% | D+63.6 | D+7.0 |
| 2012* | 78.3% | 21.7% | D+56.6 | R+4.1 |
| 2008* | 79.6% | 18.9% | D+60.7 | — |
* Pre-2022 results projected onto current district boundaries. Actual boundaries at the time of the election may have differed.
What defines CO-SD-18?
It has a working-class, predominantly white electorate — strong Republican base territory.
Similar state senate districts
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Key Insights
- Has voted Democratic in the last 5 presidential elections
- Latest election (2024) was a Democratic landslide with a 68.0% margin
- Turnout decreased by 80.0 percentage points since the previous presidential election
Who Lives Here
| Group | CO-SD-18 | State | National |
|---|---|---|---|
White (Non-Hispanic) | 77.4% | 64.8% | 57.4% |
Hispanic / Latino | 9.7% | 22.5% | 19.3% |
Asian | 6.3% | 3.3% | 6.0% |
Multiracial / Other | 4.8% | 4.1% | 4.0% |
Black / African American | 1.1% | 4.0% | 12.2% |
Native American / Alaska Native | 0.5% | 1.1% | 0.9% |
Native Hawaiian / Pacific Islander | 0.1% | 0.2% | 0.2% |
Who lives in Colorado State Senate District 18? 164,205 residents as of the 2020 Census.
Demographics
Scale, voting-age share, and this geography's footprint inside the national electorate.
Income, attainment, and ownership indicators that often shape coalition structure and turnout behavior.
Age structure, language use, and nativity signals that explain how this geography differs from state and nation.
Turnout in CO-SD-18
How competitive is CO-SD-18?
Other Colorado State Senate Districts
34 total| Name | Margin ↓ |
|---|---|
| CO-SD-31 | D+64.3 |
| CO-SD-33 | D+61.5 |
| CO-SD-34 | D+57.7 |
| CO-SD-32 | D+47.6 |
| CO-SD-14 | D+42.7 |
| CO-SD-17 | D+39.6 |
| CO-SD-22 | D+32.9 |
| CO-SD-26 | D+30.0 |
| CO-SD-29 | D+27.0 |
| CO-SD-28 | D+25.6 |
| CO-SD-25 | D+23.1 |
| CO-SD-19 | D+19.1 |
| CO-SD-20 | D+17.3 |
| CO-SD-16 | D+12.8 |
| CO-SD-27 | D+11.9 |
| CO-SD-08 | D+10.2 |
| CO-SD-15 | D+7.7 |
| CO-SD-24 | D+6.8 |
| CO-SD-11 | D+4.3 |
| CO-SD-12 | D+4.0 |
| CO-SD-21 | D+3.7 |
| CO-SD-30 | D+2.5 |
| CO-SD-06 | D+0.6 |
| CO-SD-05 | R+0.7 |
| CO-SD-03 | R+5.1 |