When was Sevier County founded?

Sevier County was founded in 1865, formed from Sanpete County, and named after Sevier River.

What is the county seat of Sevier County?

The county seat of Sevier County is Richfield.

Is there an online parcel map for Sevier County?

Yes. Utah Geospatial Resource Center (UGRC), State of Utah publishes a parcel map of 19,701 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.

Has Sevier County's boundary or name changed?

Sevier County was created in 1865 from Sanpete County. Since then the Atlas of Historical County Boundaries records 7 later changes, chiefly involving Emery County, Piute County and Millard County.

Who issues building permits in Sevier County?

The county's page on building permits: Obtaining a Building Permit. Inside a city or town, ask that city first.

Is my lot in a flood zone?

We do not have flood maps for Sevier County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.

County · code 49041

Sevier CountyUtah

Sevier County is a county in central Utah, with Richfield as its seat. The county was created in 1865 from Sanpete County and named after the Sevier River.

Founded1865
County seatRichfield
Named forSevier River
Land area1,910 sq mi + 7.8 sq mi water
Population21,522 2020 Census
Parcels mapped19,701 checked 14 October 2026

Open the free map Click any parcel in Sevier County: acreage, parcel id, address and who publishes the map. No sign-in.

Updated 20 October 2026

Census outline · seat marked

History

Formed in 1865 from Sanpete County

An old deed may name a county that no longer exists, or a boundary that has since moved.

Sevier County was created by the Utah Territory from Sanpete County in 1865. It gained land from Piute County in 1866 and later lost territory to the creation of Emery County in 1880. The county became part of the state of Utah in 1896 and exchanged land with Millard County in 1921.

Boundary changes from the Newberry Library, Atlas of Historical County Boundaries; the 5 that matter most are shown first.

1865
Sevier County created Sevier created by Utah Territory from Sanpete.
from Sanpete
16 January 1865 · Utah Terr. Laws 1864, 14th sess., p. 16
1866
Gained territory Sevier gained from Piute.
from Piute
10 January 1866 · Utah Terr. Laws 1865, 15th sess., ch. 146, sec. 7/p. 208
1880
Lost territory Sevier lost to creation of Emery; Sevier was temporarily divided into 2 parts.
to Emery
12 February 1880 · Utah Terr. Laws 1880, 24th sess., ch. 4/pp. 4-5
1880
Lost territory Sevier lost to Emery; Sevier no longer divided into 2 parts.
to Emery
17 February 1880 · Utah Terr. Laws 1880, 24th sess., ch. 9/pp. 10-11
1896
Became part of Utah Sevier became a county in the state of Utah. 4 January 1896 · U.S. Stat., vol. 28, ch. 138 [1894]/pp. 107-112; U.S. Stat., vol. 29, procl. no. 9, [1896]/pp. 876-877; Van Zandt, 159

Show all 8 changes (3 more)

1865
Sevier County created Sevier created by Utah Territory from Sanpete.
from Sanpete
16 January 1865 · Utah Terr. Laws 1864, 14th sess., p. 16
1866
Gained territory Sevier gained from Piute.
from Piute
10 January 1866 · Utah Terr. Laws 1865, 15th sess., ch. 146, sec. 7/p. 208
1880
Lost territory Sevier lost to creation of Emery; Sevier was temporarily divided into 2 parts.
to Emery
12 February 1880 · Utah Terr. Laws 1880, 24th sess., ch. 4/pp. 4-5
1880
Lost territory Sevier lost to Emery; Sevier no longer divided into 2 parts.
to Emery
17 February 1880 · Utah Terr. Laws 1880, 24th sess., ch. 9/pp. 10-11
1890
Lost territory Sevier lost to Sanpete.
to Sanpete
10 March 1890 · Utah Terr. Laws 1890, 29th sess., ch. 16, pp. 13-14
1896
Became part of Utah Sevier became a county in the state of Utah. 4 January 1896 · U.S. Stat., vol. 28, ch. 138 [1894]/pp. 107-112; U.S. Stat., vol. 29, procl. no. 9, [1896]/pp. 876-877; Van Zandt, 159
1921
Exchanged territory Sevier exchanged with Millard.
with Millard
10 March 1921 · Utah Laws 1921, 14th sess., ch. 33, pp. 104-106
1931
Gained territory Sevier gained from Piute when boundary was placed on public land survey lines.
from Piute
23 March 1931 · Utah Laws 1931, 19th sess., ch. 47, pp. 163-164

Land and parcels

What the maps cover in Sevier

Who publishes each layer, how good it is, and when we last checked.

Parcels Good enough

Lot lines and tax-map numbers for 19,701 parcels from Utah Geospatial Resource Center (UGRC), State of Utah. Drawn for tax purposes: usually within a few feet of a survey, but not a survey.
edited 9 October 2026 · checked 14 October 2026
Address points Missing

No public address points layer found for Sevier County yet.
Buildings Reference

Roof outlines traced from aerial imagery from FEMA Response Geospatial Office with Oak Ridge National Laboratory (ORNL). Good for seeing what is on a lot; not accurate enough to set a fence from.
checked 18 October 2026

Official: from the office that keeps the record
Good enough: a reliable statewide or national copy
Fallback: a guide only; check the official record
Missing: nothing public found yet

People and land

Sevier by the Census

Population

21,522 2020 Census count

Housing units

8,517 2020 Census count

Land area

1,910 square miles

Water area

7.8 square miles

People per sq mi

11 population ÷ land area

Source: US Census Bureau, 2020 Census; US Census Bureau, 2020 Gazetteer Files. Not endorsed or certified by the Census Bureau.

Rules and offices

Who to ask before you build, dig or sell

Official county pages only. We link to them; we do not copy them, because they change.

Inside a city or town, permits usually come from that city rather than the county.

Permits

Obtaining a Building Permitfrom sevier.utah.gov
Building Permit Applicationfrom utah.cityinspect.com

Zoning and code

Planning and zoning
Contact Us
from sevier.utah.gov · checked 13 October 2026
Sevier County Code of Ordinancesfrom codelibrary.amlegal.com
Building / Planning / Zoningfrom sevier.utah.gov
Planning and Zoningfrom sevier.utah.gov

County government

County government
The official website of Sevier County.
sevier.utah.gov

See your own lot on these maps

Open Sevier County on Parcel Chart's free map and click your parcel. Save it with a free account; the full record of your place (site map, projects, documents) is Pro, in early access.

Open the free map no sign-in Pro early access

Questions

Common questions about Sevier County

When was Sevier County founded?: Sevier County was founded in 1865, formed from Sanpete County, and named after Sevier River.
What is the county seat of Sevier County?: The county seat of Sevier County is Richfield.
Is there an online parcel map for Sevier County?: Yes. Utah Geospatial Resource Center (UGRC), State of Utah publishes a parcel map of 19,701 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Sevier County's boundary or name changed?: Sevier County was created in 1865 from Sanpete County. Since then the Atlas of Historical County Boundaries records 7 later changes, chiefly involving Emery County, Piute County and Millard County.
Who issues building permits in Sevier County?: The county's page on building permits: Obtaining a Building Permit. Inside a city or town, ask that city first.
Is my lot in a flood zone?: We do not have flood maps for Sevier County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.

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