When was Juab County founded?

Juab County was founded in 1852, formed from Utah County, and named after Indigenous peoples of the United States in North America.

What is the county seat of Juab County?

The county seat of Juab County is Nephi.

Is there an online parcel map for Juab County?

Yes. Utah Geospatial Resource Center (UGRC), State of Utah publishes a parcel map of 16,208 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.

Has Juab County's boundary or name changed?

Juab County was created in 1852 from Utah County. Since then the Atlas of Historical County Boundaries records 13 later changes, chiefly involving Sanpete County, Millard County and Tooele County.

Is my lot in a flood zone?

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

County · code 49023

Juab CountyUtah

Juab County is in Utah and has its seat in Nephi. The county was created in 1852 from Utah County.

Founded1852
County seatNephi
Named forIndigenous peoples of the United States in North America
Land area3,392 sq mi + 14 sq mi water
Population11,786 2020 Census
Parcels mapped16,208 checked 14 October 2026

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

Updated 20 October 2026

Census outline · seat marked

History

Formed in 1852 from Utah County

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

Juab County was created by Utah Territory in 1852 from Utah County and non-county area, originally including parts of present Utah and Nevada. Over the following years, Juab County lost territory to the creation of several counties including Carson, Humboldt, and St. Mary's, and was eliminated from present Nevada by 1862.

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

1852
Juab County created Juab created by Utah Territory from Utah and non-county area; Juab included parts of present Utah and Nevada.
from Utah
3 March 1852 · Utah Terr. Laws 1851, 1st sess., sec. 9/p. 163
1854
Lost territory Juab lost to creation of Carson (Utah Territory, extinct).
to Carson
17 January 1854 · Utah Terr. Laws 1853, 3rd sess., p. 19
1855
Exchanged territory Juab exchanged with Sanpete.
with Sanpete
18 January 1855 · Utah Terr. Laws 1854, 4th sess., ch. 81/pp. 276-277
1896
Became part of Utah Juab 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
Juab County created The Utah State Supreme Court upheld the 19 March 1913 law that established part of the boundary between Juab and Sanpete.
from Sanpete
29 December 1916 · "Barton v. Sanpete Co.," in Utah Rpts., 49:188-195

Show all 15 changes (10 more, mostly small adjustments)

1852
Juab County created Juab created by Utah Territory from Utah and non-county area; Juab included parts of present Utah and Nevada.
from Utah
3 March 1852 · Utah Terr. Laws 1851, 1st sess., sec. 9/p. 163
1854
Lost territory Juab lost to creation of Carson (Utah Territory, extinct).
to Carson
17 January 1854 · Utah Terr. Laws 1853, 3rd sess., p. 19
1855
Exchanged territory Juab exchanged with Sanpete.
with Sanpete
18 January 1855 · Utah Terr. Laws 1854, 4th sess., ch. 81/pp. 276-277
1856
Lost territory Juab lost to creation of Humboldt (Utah Territory, extinct) and St. Mary's (Utah Territory, extinct); Juab eliminated from present Nevada.
to Humboldtto St. Mary's
5 January 1856 · Utah Terr. Laws 1855, 5th sess., secs. 2-3/ pp. 5-6
1861
Gained territory Juab gained from St. Mary's (Utah Territory, extinct); Juab included territory in present Utah and Nevada.
from St. Mary's
18 January 1861 · Utah Terr. Laws 1861, 10th sess., p. 19
1862
Gained territory Juab gained small areas from Cedar (Utah Territory, extinct) and Shambip (Utah Territory, extinct); exchanged with Millard; lost to Tooele and Utah.
from Cedar from Shambip from Millardfrom Tooelefrom Utah
17 January 1862 · Utah Terr. Laws 1861, 11th sess., sec. 6/pp. 47-48
1866
Exchanged territory Juab exchanged small areas with Sanpete, lost to Millard.
with Sanpete with Millard
10 January 1866 · Utah Terr. Laws 1865, 15th sess., ch. 146, sec. 8/p. 208
1868
Boundary clarified Juab boundary with Sanpete was clarified (no change).
with Sanpeteno change
21 February 1868 · Utah Terr. Laws 1868, 17th sess., ch. 23/p. 26
1870
Gained territory Juab gained from Tooele.
from Tooele
18 February 1870 · Utah Terr. Laws 1870, 19th sess., p. 127
1888
Gained territory Juab gained from Millard and gained small area from Sanpete. Boundary with Sanpete was uncertain and ambiguous.
from Millard from Sanpete
6 March 1888 · Utah Terr. Laws 1888, 28th sess., ch. 29, pp. 44-46
1894
Changed Boundary between Jaub and Tooele was adjusted to run on the second standard parallel south (no change).
JaubTooele
8 March 1894 · Utah Terr. Laws 1894, 31st sess., ch. 35, pp. 31-32
1896
Became part of Utah Juab 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 Juab exchanged with Sanpete. 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 Sanpete
19 March 1913 · Utah Laws 1913, 10th sess., ch. 71, pp. 113-115; HRS Utah, Sanpete, 7-10
1916
Juab County created The Utah State Supreme Court upheld the 19 March 1913 law that established part of the boundary between Juab and Sanpete.
from Sanpete
29 December 1916 · "Barton v. Sanpete Co.," in Utah Rpts., 49:188-195
1919
Exchanged territory Juab exchanged with Sanpete, lost to Millard when boundaries were placed on public land survey lines. Boundary with Millard west of the Sevier River was adjusted to run on public land survey line (no change).
with Sanpete with Millard
8 March 1919 · Utah Laws 1919, 13th sess., ch. 27, pp. 47-49

Land and parcels

What the maps cover in Juab

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

Parcels Good enough

Lot lines and tax-map numbers for 16,208 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 Juab 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

Juab by the Census

Population

11,786 2020 Census count

Housing units

3,816 2020 Census count

Land area

3,392 square miles

Water area

14 square miles

People per sq mi

3 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

Juab County's official site

We have found the county's site but not its offices yet; start there.

County government

County government
The official website of Juab County.
co.juab.ut.us

See your own lot on these maps

Open Juab 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 Juab County

When was Juab County founded?: Juab County was founded in 1852, formed from Utah County, and named after Indigenous peoples of the United States in North America.
What is the county seat of Juab County?: The county seat of Juab County is Nephi.
Is there an online parcel map for Juab County?: Yes. Utah Geospatial Resource Center (UGRC), State of Utah publishes a parcel map of 16,208 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Juab County's boundary or name changed?: Juab County was created in 1852 from Utah County. Since then the Atlas of Historical County Boundaries records 13 later changes, chiefly involving Sanpete County, Millard County and Tooele County.
Is my lot in a flood zone?: We do not have flood maps for Juab 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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