Jefferson County is a district of Colorado.
Boundaries: United States Census Bureau, MAF/TIGER Database (https://www.census.gov/geographies/mapping-files/time-series/geo/carto-boundary-file.html) via geoBoundaries, public domain
| City of Arvada | no seat recorded | |
| City of Edgewater | no seat recorded | 5 k |
| City of Golden | no seat recorded | |
| City of Lakewood | no seat recorded | |
| City of Westminster | no seat recorded | |
| City of Wheat Ridge | no seat recorded | |
| Town of Lakeside | no seat recorded | 8 |
| Town of Mountain View | no seat recorded | 507 |
Nothing has been written about Jefferson County here, and neither Wikipedia nor Wikivoyage has an article we could draw one from. If you know the place, that makes you a better source than anything we have. Tell us what is worth knowing and where you got it.
We show Golden as the capital of Jefferson County. If that is wrong, tell us what it should be and where you read it.
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