Niobrara County, WY Property Tax: $731/yr (2026)
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The effective property tax rate in Niobrara County is 0.38% of assessed home value. On a home at the county median value of $194,200, that works out to about $738 per year, or $62 per month. Niobrara County is located in eastern Wyoming, and is home to approximately 2,415 residents.
About Niobrara County
Niobrara County covers approximately 2,626.0 square miles in Wyoming. The county is home to about 2,415 residents living in roughly 1,378 housing units, of which 54.0% are owner-occupied. The median household income is $48,987, and the median home was built in 1955.
Niobrara County borders Sioux County, Custer County, Fall River County, Converse County, Goshen County — useful comparisons if you're considering nearby areas with potentially different tax rates.
How Property Taxes Work in Wyoming
Property taxes in Wyoming are administered at the county level. Each county sets a millage rate applied to the assessed value of real property — the effective rate above accounts for any partial assessments and exemptions already built into the local tax base. Assessed value can differ meaningfully from current market value depending on how often the county reassesses and what fraction of market value it uses.
Most counties in Wyoming offer exemptions that reduce the taxable assessed value: homestead exemptions for primary residences, senior exemptions, disability exemptions, and veteran exemptions are common. These reduce your effective rate below the county-wide average shown here. Contact the Niobrara County Assessor's office to learn which exemptions apply to your property and when to file.
Niobrara County vs. Neighboring Counties
| Location | Eff. Rate | Median Home | Annual Tax |
|---|---|---|---|
| Niobrara County, WY | 0.38% | $194,200 | $738 |
| Wyoming state average | 0.56% | — | $1,088* |
| Sioux County | 1.21% | $141,700 | $1,721 |
| Custer County | 0.78% | $327,200 | $2,549 |
| Fall River County | 1.06% | $176,300 | $1,876 |
| Converse County | 0.58% | $269,700 | $1,557 |
| Goshen County | 0.59% | $234,600 | $1,395 |
| US national average | 1.10% | $281,900 | $3,101 |
*State average annual tax computed at Niobrara County's median home value of $194,200. Source: US Census ACS 2023 5-year estimates.
Frequently Asked Questions
How does Niobrara County's property tax rate compare to the rest of Wyoming?
At 0.38%, Niobrara County is lower than the Wyoming state average of 0.56%. On a home at the county median of $194,200, that means about $738 per year — versus $1,088 at the state average rate, a difference of $350 per year. Compared to the national average of 1.10%, Niobrara County is below average.
What's a typical annual property tax bill in Niobrara County?
For a home at the county median value of $194,200, the annual property tax in Niobrara County is approximately $738 — or about $62 per month. For a home worth $291,300, expect around $1,107 per year. For a $388,400 home, approximately $1,476 per year. Use the calculator above to estimate taxes for any assessed value.
Where do I appeal a Niobrara County property tax assessment?
Property assessment appeals in Niobrara County are handled by the Niobrara County Assessor's office. Most jurisdictions require filing within 30–90 days of receiving your assessment notice — confirm the specific deadline with the assessor's office before submitting, as deadlines and procedures vary by county. A successful appeal can reduce your assessed value and lower your tax bill for the current and future tax years.
What exemptions are available in Niobrara County?
Wyoming counties commonly offer homestead exemptions for owner-occupied primary residences, senior citizen exemptions for qualifying homeowners aged 65 and older, exemptions for disabled residents, and veterans' exemptions. Each exemption reduces your assessed taxable value, which in turn reduces your effective tax rate below the county-wide 0.38% shown here. Contact the Niobrara County Assessor's office to confirm which exemptions are available and the application deadlines.
Data sources: US Census Bureau ACS 2023 5-Year Estimates, US Census Gazetteer (2024), County Adjacency File