When was Sanpete County founded?

Sanpete County was founded in 1850, and named after Sanpitch.

What is the county seat of Sanpete County?

The county seat of Sanpete County is Manti.

Is there an online parcel map for Sanpete County?

Not that we have found yet. Lot lines and owners of record are kept by the county assessor's office. When a public parcel map appears, it shows here.

Has Sanpete County's boundary or name changed?

Sanpete County was created in 1850. Since then the Atlas of Historical County Boundaries records 17 later changes, chiefly involving Juab County, Emery County and Green River County.

Is my lot in a flood zone?

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

County · code 49039

Sanpete CountyUtah

Sanpete County in Utah was created in 1850 as a county of the state of Deseret to cover the San Pete Valley. The county seat is Manti.

Founded1850
County seatManti
Named forSanpitch
Land area1,590 sq mi + 12 sq mi water
Population28,437 2020 Census

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

Updated 20 October 2026

Census outline · seat marked

History

Founded in 1850

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

Sanpete County was named after Sanpitch. The state of Deseret was dissolved in 1851, but Sanpete County continued to operate under Utah Territory. Over the following decades, Sanpete County experienced several boundary adjustments, including exchanges with Juab County, losses to the creation of Green River, Sevier, and Wasatch counties, and changes when Colorado Territory was established in 1861.

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

1850
Sanpete County created Sanpete created by the state of Deseret to cover the San Pete Valley. 31 January 1850 · Morgan, 47-48, 144
1851
Eliminated The state of Deseret was dissolved by its General Assembly, upon recommendation of Brigham Young. State of Deseret counties, including Sanpete, continued to operate. 5 April 1851 · Brown, Cannon, and Jackson, 90; Powell, 139
1861
Sanpete County created The United States created Colorado Territory from Nebraska, New Mexico, and Utah Territories, and from the former Kansas Territory. Sanpete lost to Colorado Territory and was eliminated from present Colorado. 28 February 1861 · U.S. Stat., vol. 12, ch. 59[1861]/pp. 172-177; Van Zandt, 141
1896
Became part of Utah Sanpete 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
1916
Sanpete County created The Utah State Supreme Court upheld the 19 March 1913 law that established part of the boundary between Sanpete and Juab.
from Juab
29 December 1916 · "Barton v. Sanpete Co.," in Utah Rpts., 49:188-195

Show all 20 changes (15 more)

1850
Sanpete County created Sanpete created by the state of Deseret to cover the San Pete Valley. 31 January 1850 · Morgan, 47-48, 144
1851
Eliminated The state of Deseret was dissolved by its General Assembly, upon recommendation of Brigham Young. State of Deseret counties, including Sanpete, continued to operate. 5 April 1851 · Brown, Cannon, and Jackson, 90; Powell, 139
1852
Boundary clarified Sanpete boundaries redefined by Utah Territory. Sanpete gained non-county area, lost to Millard; Sanpete included parts of present Utah and Colorado.
with Millardno change
3 March 1852 · Utah Terr. Laws 1851, 1st sess., sec. 11/p. 164
1854
Lost territory Sanpete lost to Green River (Utah Territory, extinct).
to Green River
13 January 1854 · Utah Terr. Laws 1853, 3d sess., pp. 14-15
1855
Exchanged territory Sanpete exchanged with Juab.
with Juab
18 January 1855 · Utah Terr. Laws 1854, 4th sess., ch. 81/pp. 276-277
1861
Sanpete County created The United States created Colorado Territory from Nebraska, New Mexico, and Utah Territories, and from the former Kansas Territory. Sanpete lost to Colorado Territory and was eliminated from present Colorado. 28 February 1861 · U.S. Stat., vol. 12, ch. 59[1861]/pp. 172-177; Van Zandt, 141
1862
Gained territory Sanpete gained from Green River (Utah Territory, extinct) and Millard; exchanged with Utah; lost to Beaver, and lost to creation of Wasatch.
from Green River from Millard from Utah from Beaverfrom Wasatch
17 January 1862 · Utah Terr. Laws 1861, 11th sess., sec. 5/p. 47
1865
Lost territory Sanpete lost to creation of Sevier.
to Sevier
16 January 1865 · Utah Terr. Laws 1864, 14th sess., p. 16
1866
Exchanged territory Sanpete exchanged small areas with Juab.
with Juab
10 January 1866 · Utah Terr. Laws 1865, 15th sess., ch. 146, sec. 9/p. 208
1868
Boundary clarified Sanpete boundary with Juab was clarified (no change).
with Juabno change
21 February 1868 · Utah Terr. Laws 1868, 17th sess., ch. 23/p. 26
1880
Lost territory Sanpete lost to creation of Emery.
to Emery
12 February 1880 · Utah Terr. Laws 1880, 24th sess., ch. 4/pp. 4-5
1880
Lost territory Sanpete lost to Emery.
to Emery
17 February 1880 · Utah Terr. Laws 1880, 24th sess., ch. 9/pp. 10-11
1880
Lost territory Sanpete lost to creation of Uintah, and lost to Utah and Wasatch.
to Uintah to Utah to Wasatch
18 February 1880 · Utah Terr. Laws 1880, 24th sess., chs. 10, 16/pp. 11-12, 18-19
1888
Lost territory Sanpete lost small area to Juab. Boundary with Juab was uncertain and ambiguous.
to Juab
6 March 1888 · Utah Terr. Laws 1888, 28th sess., ch. 29, pp. 44-46
1890
Gained territory Sanpete gained from Sevier.
from Sevier
10 March 1890 · Utah Terr. Laws 1890, 29th sess., ch. 16, pp. 13-14
1890
Gained territory Sanpete gained from Emery.
from Emery
13 March 1890 · Utah Terr. Laws 1890, 29th sess., ch. 61, p. 94
1896
Became part of Utah Sanpete 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
1913
Exchanged territory Sanpete exchanged with Juab. Boundary between Juab and Sanpete was "indefinite and ambiguous to the extent that it has heretofore been impossible definitely to determine the exact direction of said boundary…" This law was an attempt to settle the dispute. Boundary was also adjusted in T13S, R2E.
with Juab
19 March 1913 · Utah Laws 1913, 10th sess., ch. 71, pp. 113-115; HRS Utah, Sanpete, 7-10
1916
Sanpete County created The Utah State Supreme Court upheld the 19 March 1913 law that established part of the boundary between Sanpete and Juab.
from Juab
29 December 1916 · "Barton v. Sanpete Co.," in Utah Rpts., 49:188-195
1919
Exchanged territory Sanpete exchanged with Juab and Millard when boundaries were placed on public land survey lines.
with Juab with Millard
8 March 1919 · Utah Laws 1919, 13th sess., ch. 27, pp. 49-50

Land and parcels

What the maps cover in Sanpete

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

Parcels Missing

No public parcel map found for Sanpete County yet. Lot lines and owners of record are kept by the county (sanpete.com).
Address points Missing

No public address points layer found for Sanpete 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

Sanpete by the Census

Population

28,437 2020 Census count

Housing units

10,237 2020 Census count

Land area

1,590 square miles

Water area

12 square miles

People per sq mi

18 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.

Zoning and code

Planning & Zoningfrom sanpetecountyutah.gov

County government

County government
The official website of Sanpete County.
sanpete.com

See your own lot on these maps

Open Sanpete 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 Sanpete County

When was Sanpete County founded?: Sanpete County was founded in 1850, and named after Sanpitch.
What is the county seat of Sanpete County?: The county seat of Sanpete County is Manti.
Is there an online parcel map for Sanpete County?: Not that we have found yet. Lot lines and owners of record are kept by the county assessor's office. When a public parcel map appears, it shows here.
Has Sanpete County's boundary or name changed?: Sanpete County was created in 1850. Since then the Atlas of Historical County Boundaries records 17 later changes, chiefly involving Juab County, Emery County and Green River County.
Is my lot in a flood zone?: We do not have flood maps for Sanpete County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.

Nearby