When was Marengo County founded?

Marengo County was founded in 1818, and named after Battle of Marengo.

What is the county seat of Marengo County?

The county seat of Marengo County is Linden.

Is there an online parcel map for Marengo 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 Marengo County's boundary or name changed?

Marengo County was created in 1818. Since then the Atlas of Historical County Boundaries records 11 later changes, most of them small boundary adjustments, chiefly involving Perry County, Dallas County and Hale County.

Is my lot in a flood zone?

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

County · code 01091

Marengo CountyAlabama

Marengo County is located in Alabama and was created on February 6, 1818, with its county seat in Linden.

Founded1818
County seatLinden
Named forBattle of Marengo
Land area977 sq mi + 5.8 sq mi water
Population19,323 2020 Census

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

Updated 19 October 2026

Census outline · seat marked

History

Founded in 1818

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

Marengo County was named after the Battle of Marengo. The county was created from Non-County Area 1 and has undergone numerous boundary adjustments, gaining and losing land to neighboring counties including Dallas, Greene, Perry, Wilcox, Tuscaloosa, Pickens, Washington, Sumter, and Hale between 1818 and 1870.

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

1818
Marengo County created Marengo created by Alabama Territory from Non-County Area 1. 6 February 1818 · Ala. Terr. Acts 1818, 1st sess., secs. 1-3/pp. 16-18
1818
Gained territory Marengo gained all of Non-County Area 5; Non-County Area 5 eliminated. 12 February 1818 · Ala. Terr. Acts 1818, 1st sess., p. 57
1832
Lost territory Marengo lost all of attached Non-County Area 6 to Pickens and Washington, and to the creation of Sumter.
to Pickens to Washington to Sumter
18 December 1832 · Ala. Acts 1832, ann. sess., no. 11/p. 11
1840
Gained territory Marengo gained from Dallas.
from Dallas
4 February 1840 · Ala. Acts 1839, ann. sess., no. 60/p. 45
1867
Lost territory Marengo lost to creation of Hale.
to Hale
30 January 1867 · Ala. Acts 1866, reg. sess., no. 418, secs. 1, 9/pp. 477, 480

Show all 12 changes (7 more, mostly small adjustments)

1818
Marengo County created Marengo created by Alabama Territory from Non-County Area 1. 6 February 1818 · Ala. Terr. Acts 1818, 1st sess., secs. 1-3/pp. 16-18
1818
Gained territory Marengo gained all of Non-County Area 5; Non-County Area 5 eliminated. 12 February 1818 · Ala. Terr. Acts 1818, 1st sess., p. 57
1819
Gained territory Marengo gained from Dallas; lost to creation of Greene, Perry, and Wilcox. Marengo lost small area to Tuscaloosa.
from Dallas from Greene from Perry from Wilcox from Tuscaloosa
13 December 1819 · Ala. Acts 1819, 1st sess./pp. 50-57; Ala. Rpts., 215:640
1819
Changed Non-County Area 6 belonging to the Choctaw Indians was attached to Marengo. 17 December 1819 · Ala. Acts 1819, 1st sess., p. 34
1829
Gained territory Marengo gained small area from Wilcox.
from Wilcox
26 January 1829 · Ala. Acts 1828, 10th sess., p. 62; Ala. Rpts., 215:640
1832
Lost territory Marengo lost all of attached Non-County Area 6 to Pickens and Washington, and to the creation of Sumter.
to Pickens to Washington to Sumter
18 December 1832 · Ala. Acts 1832, ann. sess., no. 11/p. 11
1840
Gained territory Marengo gained from Dallas.
from Dallas
4 February 1840 · Ala. Acts 1839, ann. sess., no. 60/p. 45
1863
Gained territory Marengo gained small area from Perry to accommodate local property owner.
from Perry
28 November 1863 · Ala. Acts 1863, 3d reg. sess., no. 199/p. 151
1863
Lost territory Marengo lost small area to Perry to accommodate local property owner.
to Perry
30 November 1863 · Ala. Acts 1863, 3d reg. sess., no. 201/p. 152
1866
Gained territory Marengo gained small area from Perry to accommodate local property owner.
from Perry
20 February 1866 · Ala. Acts 1865, reg. sess., no. 450/p. 571
1867
Lost territory Marengo lost to creation of Hale.
to Hale
30 January 1867 · Ala. Acts 1866, reg. sess., no. 418, secs. 1, 9/pp. 477, 480
1870
Gained territory Marengo gained small area from Hale; Marengo gained small area from Perry to accommodate local property owner.
from Hale from Perry
7 February 1870 · Ala. Acts 1869, reg. sess., no. 80/p. 69; no. 87/p. 75

Land and parcels

What the maps cover in Marengo

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

Parcels Missing

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

No public address points layer found for Marengo 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

Marengo by the Census

Population

19,323 2020 Census count

Housing units

9,777 2020 Census count

Land area

977 square miles

Water area

5.8 square miles

People per sq mi

20 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

Marengo 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 Marengo County.
marengocountyal.com

See your own lot on these maps

Open Marengo 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 Marengo County

When was Marengo County founded?: Marengo County was founded in 1818, and named after Battle of Marengo.
What is the county seat of Marengo County?: The county seat of Marengo County is Linden.
Is there an online parcel map for Marengo 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 Marengo County's boundary or name changed?: Marengo County was created in 1818. Since then the Atlas of Historical County Boundaries records 11 later changes, most of them small boundary adjustments, chiefly involving Perry County, Dallas County and Hale County.
Is my lot in a flood zone?: We do not have flood maps for Marengo County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.

Nearby