Best Car Dealership Websites in Sioux City, IA
11 dealership websites in Sioux City, ranked by how fast and stable they are for real shoppers. Sioux City averages 80, 3 points below the Iowa average — #5 of 5 Iowa cities with 10+ ranked sites. Billion Kia Of Sioux City leads at 96. Updated Oct 17, 2026.
- Sites ranked
- 11
- Average score
- 80
- −3 vs Iowa (83)
- Scoring good
- 45%
- 5 sites above 80
- City rank
- #5
- of 5 in Iowa
Dealership websites in Sioux City
| RANK | DEALERSHIP | SCORE |
|---|---|---|
| 1 | 96 | |
| 2 | 96 | |
| 3 | 93 | |
| 4 | 84 | |
| 5 | 84 | |
| 6 | 80 | |
| 7 | 74 | |
| 8 | 71 | |
| 9 | 70 | |
| 10 | 69 | |
| 11 | 66 |
The Sioux City market
Website providers in Sioux City
Bars show share of ranked sites; the number is each provider's average score. 1 site with no detected provider.
Score spread
- Good81–100545%
- Needs improvement61–80655%
- Poor0–6000%
Median score 80
Nearby cities
The closest cities with ranked dealership websites.
More cities in Iowa
How the rankings work
Each website's score (0–100) comes from Google's Chrome UX Report — what real Chrome users experienced over a roughly 28-day window. It weights five field metrics at the 75th percentile: Largest Contentful Paint, Cumulative Layout Shift, Interaction to Next Paint, First Contentful Paint and Time to First Byte. Above 80 is good, 61–80 needs improvement, 60 or less is poor.
It measures website performance, not a dealership's sales or service. Active dealership websites with enough Chrome traffic to be measured are ranked; the rest aren't scored rather than scored low.