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County · code 13151

Henry CountyGeorgia

Henry County is a county in Georgia, established on May 15, 1821, with its county seat in McDonough.

  • Founded1821
  • County seatMcDonough
  • Named forPatrick Henry
  • Land area319 sq mi + 7.8 sq mi water
  • Population240,712 2020 Census
  • Parcels mapped90,931 checked 15 October 2026
Open the free map Click any parcel in Henry County: acreage, parcel id, address and who publishes the map. No sign-in.

Updated

ClaytonSpaldingRockdaleButtsNewtonDeKalb McDonough Census outline · seat marked

Where it is

Henry on the map of Georgia

Georgia has 159 counties and county equivalents, each with its own records office. Shapes with a page are links.

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Counties of Georgia · Henry highlighted

History

Founded in 1821

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

Henry County was created from non-county area in 1821 and named after Patrick Henry. In its early years, the county gained land from Walton County but lost territory to the creation of Newton, DeKalb, Butts, Pike, and Spalding counties through the 1850s.

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

  1. 1821
    Henry County created Henry created from Non-County Area. · Ga. Laws 1821, pp. 3-12
  2. 1821
    Gained territory Henry gained from Walton.
    from Walton
    · Ga. Laws 1821, p. 33
  3. 1821
    Lost territory Henry lost to Fayette, and lost to creation of Newton.
    to Fayetteto Newton
    · Dawson's Compilation, 119-121
  4. 1822
    Lost territory Henry lost to creation of Dekalb.
    to Dekalb
    · Dawson's Compilation, 121-122
  5. 1825
    Lost territory Henry lost to creation of Butts.
    to Butts
    · Ga. Laws 1825, p. 63; Dawson's Compilation, 130-131
Show all 25 changes (20 more, mostly small adjustments)
  1. 1821
    Henry County created Henry created from Non-County Area. · Ga. Laws 1821, pp. 3-12
  2. 1821
    Gained territory Henry gained from Walton.
    from Walton
    · Ga. Laws 1821, p. 33
  3. 1821
    Lost territory Henry lost to Fayette, and lost to creation of Newton.
    to Fayetteto Newton
    · Dawson's Compilation, 119-121
  4. 1822
    Lost territory Henry lost to creation of Dekalb.
    to Dekalb
    · Dawson's Compilation, 121-122
  5. 1825
    Lost territory Henry lost to creation of Butts.
    to Butts
    · Ga. Laws 1825, p. 63; Dawson's Compilation, 130-131
  6. 1841
    Gained territory Henry gained small area from Newton to accommodate private individual (lot 16; 11th dist.).
    from Newton
    · Ga. Laws 1841, pp. 62-63
  7. 1842
    Lost territory Henry lost to Pike (lots 64, 65, 66, 96; 3rd dist.).
    to Pike
    · Ga. Laws 1842, p. 66
  8. 1843
    Lost territory Henry lost small areas to Butts; Henry authorized to lose to Newton (part of lot 16; 11th dist.) to accommodate private individuals, but that area already a part of Newton (no change).
    to Buttsto Newton
    · Ga. Laws 1843, pp. 29-30
  9. 1845
    Lost territory Henry lost to Pike (lots 128, 129, 160; 3rd dist.).
    to Pike
    · Ga. Laws 1845, pp. 74-75
  10. 1850
    Lost territory Henry lost small areas to Butts to accommodate private individuals.
    to Butts
    · Ga. Laws 1849, pp. 137-138
  11. 1851
    Lost territory Henry lost to creation of Spalding.
    to Spalding
    · Ga. Laws 1851, no. 28/pp. 58-60
  12. 1854
    Gained territory Henry gained small area from Butts to accommodate private individual.
    from Butts
    · Ga. Laws 1853-1854, priv. & local, no. 244/p. 318
  13. 1858
    Lost territory Henry lost small area to Dekalb (lots 252, 253; 12th dist.) to accommodate private individual.
    to Dekalb
    · Ga. Laws 1858, pub., no. 23/p. 40
  14. 1858
    Changed Legislation authorized Henry to gain from Clayton (lots 232, 248; 12 dist.), but act creating Clayton, which was passed on 30 November 1858, did not take effect until 1 January 1859; see that date for implementation of changes described here.
    Clayton
    · Ga. Laws 1858, no. 36/p. 46
  15. 1859
    Lost territory Henry lost to creation of Clayton. Act passed 30 November 1858; took effect 1 January 1859. Changes of 11 December 1858 and 13 December 1858 are incorporated with creation of Clayton.
    to Clayton
    · Ga. Laws 1858, pub., nos. 17, 26, 36/pp. 26-28, 41, 46
  16. 1860
    Lost territory Henry lost small area to Butts (part of lot 129; 2nd dist.) to accommodate private individual.
    to Butts
    · Ga. Laws 1860, loc. & priv., no. 131/p. 140
  17. 1869
    Gained territory Henry gained small area from Butts to accommodate private individual.
    from Butts
    · Ga. Laws 1869, no. 162/p. 172
  18. 1870
    Lost territory Henry lost to Butts (area including lots 91, 126; 2nd dist.). Legislation also authorized Henry to gain from Butts (lots 161, 162; 2nd dist.), but those lots were already part of Henry (no change).
    to Butts
    · Ga. Laws 1870, no. 22/p. 27; Ga. Laws 1870, Omitted Laws, no. 3/p. 7
  19. 1871
    Lost territory Henry lost to creation of Rockdale.
    to Rockdale
    · Ga. Laws 1870, no. 6/pp. 16-18
  20. 1872
    Lost territory Henry lost small area to Dekalb (lots 228, 229; 12th dist.).
    to Dekalb
    · Ga. Laws 1872, July adj. sess., loc. & priv., no. 289/p. 408
  21. 1875
    Gained territory Henry gained small area from Butts to accommodate private individual.
    from Butts
    · Ga. Laws 1875, no. 254/p. 272
  22. 1875
    Lost territory Henry lost to Clayton (lots 164, 165; 6th dist.).
    to Clayton
    · Ga. Laws 1875, no. 255/p. 273
  23. 1877
    Lost territory Henry lost small area to Clayton (lots 164, 165; 6th dist.).
    to Clayton
    · Ga. Laws 1877, no. 276/p. 275
  24. 1952
    Exchanged territory By 31 December 1952, Henry exchanged with Butts; map represents cumulative changes between Henry and Butts from 22 December 1843 through 30 December 1952.
    with Butts
    · Ga. St. Hwy. Dept., "Official 1952 Ga. Hwy. Map"
  25. 1999
    Lost territory By 31 December 1999, Henry lost to Clayton (lots 7, 26, 39,58; 6th dist., and lots 10, 23; 12th dist.).
    to Clayton
    · Ga. Dept. Trans., "St. Hwy. Map, 1999-2000"

Land and parcels

What the maps cover in Henry

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

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

Henry by the Census

Population
240,712 2020 Census count
Housing units
86,594 2020 Census count
Land area
319 square miles
Water area
7.8 square miles
People per sq mi
755 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

Henry County's official site

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

County government

See your own lot on these maps

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Questions

Common questions about Henry County

When was Henry County founded?
Henry County was founded in 1821, and named after Patrick Henry.
What is the county seat of Henry County?
The county seat of Henry County is McDonough.
Is there an online parcel map for Henry County?
Yes. Henry County publishes a parcel map of 90,931 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Henry County's boundary or name changed?
Henry County was created in 1821. Since then the Atlas of Historical County Boundaries records 22 later changes, chiefly involving Butts County, Clayton County and Dekalb County.
Is my lot in a flood zone?
We do not have flood maps for Henry County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.

Nearby

Counties next door