Sedgwick County, Colorado
Sedgwick County, Colorado, has 2,247 residents (July 2025 estimate). Its county seat is Julesburg. It uses Mountain Time and covers 548 sq mi (1,419 km²) of land.
- Resident population, July 2025
- 2,247
- Land area
- 548 sq mi (1,419 km²)
- County seat or government
- Julesburg
- Time zone
- Mountain TimeUTC-07:00 in January; UTC-06:00 in July
- Median household income
- $52,386 ± $5,952
- Median home value
- $149,000 ± $16,750
- Median rent, with utilities
- $774 ± $54
- Homes lived in by their owners
- 71.8% ± 3.6 points
- County type
- County
- Metro or micro area
- Outside any metro or micro areaNext to: Sterling, CO micro area
- Water area
- 1.36 sq mi (3.53 km²)
- State
- Colorado
- County code (FIPS)
- 08115
- Coordinates (central point)
- 40.871568, -102.355358
These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.
Time zones in Sedgwick County
| Time zone | Local time and UTC offset | Next clock change |
|---|---|---|
| Mountain TimeAmerica/Denver | UTC-07:00 in January; UTC-06:00 in July. Enable JavaScript for the live clock. | Enable JavaScript for upcoming changes. |
Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.
ZIP Code areas, largest first
5 ZIP Code areas overlap Sedgwick County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.
Official county information
We don’t have a website for this county yet. The US government’s local-office directory ↗ lists its offices. A geographic lookup cannot determine eligibility, tax liability or a court obligation.
School districts in Sedgwick County, largest first
- Holyoke School District RE-1J3,198 people
- Haxtun School District RE-2J1,473 people
- Julesburg School District RE-11,428 people
- Revere School District886 people
Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.
Cities, towns and communities, largest first
These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.
- Julesburg, Colorado (town)1,181 people
- Ovid, Colorado (town)468 people
- Sedgwick, Colorado (town)198 people
Bordering areas, nearest first
Distances are straight lines between map points.
- Deuel County, Nebraska17 mi north
- Phillips County, Colorado19 mi south
- Perkins County, Nebraska38 mi east
- Logan County, Colorado40 mi west
- Cheyenne County, Nebraska42 mi northwest
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