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County · code 48181

Grayson CountyTexas

Grayson County is a county in Texas with its seat in Sherman. It was created on March 17, 1846, and named after Peter W. Grayson.

  • Founded1846
  • County seatSherman
  • Named forPeter W. Grayson
  • Land area933 sq mi + 46 sq mi water
  • Population135,543 2020 Census
  • Parcels mapped86,985 checked 15 October 2026
Open the free map Click any parcel in Grayson County: acreage, parcel id, address and who publishes the map. No sign-in.

Updated

Marshall, OKCollinCookeBryan, OKFanninDentonLove, OK Sherman Census outline · seat marked

Where it is

Grayson on the map of Texas

Texas has 254 counties and county equivalents, each with its own records office. Shapes with a page are links.

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Counties of Texas · Grayson highlighted

History

Founded in 1846

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

Grayson County was created from non-county area in Fannin Land District on March 17, 1846, though it was not fully organized until July 13 of that year. In the following years, Grayson lost territory to the creation of Collin, Denton, and Cooke counties, but gained land from Denton in 1852.

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

  1. 1846
    Grayson County created Grayson created from non-county area in Fannin Land District; northern part of Fannin Land District attached to Grayson for administrative and judicial purposes. Grayson not fully organized. · Texas Laws 1846, 1st leg./p. 7
  2. 1846
    Lost territory Part of Fannin Land District attached to Grayson lost to creation of Denton; resulted in an overlap between Grayson and Denton (see Overlap Area 1).
    to Denton
    · Texas Laws 1846, 1st leg./p. 57
  3. 1846
    Changed Grayson fully organized. · Kennedy, 99
  4. 1848
    Lost territory Part of Fannin Land District attached to Grayson lost to creation of Cooke.
    to Cooke
    · Texas Laws 1847, 2d leg., ch. 130/p. 183
  5. 1852
    Gained territory Grayson gained from Denton.
    from Denton
    · Texas Laws 1851, 4th leg., reg. sess., ch. 41/p. 32
Show all 10 changes (5 more, mostly small adjustments)
  1. 1846
    Grayson County created Grayson created from non-county area in Fannin Land District; northern part of Fannin Land District attached to Grayson for administrative and judicial purposes. Grayson not fully organized. · Texas Laws 1846, 1st leg./p. 7
  2. 1846
    Changed Creation of Collin resulted in an overlap with Grayson (see Overlap Area 1).
    Collin
    · Texas Laws 1846, 1st leg./p. 44
  3. 1846
    Lost territory Part of Fannin Land District attached to Grayson lost to creation of Denton; resulted in an overlap between Grayson and Denton (see Overlap Area 1).
    to Denton
    · Texas Laws 1846, 1st leg./p. 57
  4. 1846
    Changed Grayson fully organized. · Kennedy, 99
  5. 1848
    Boundary clarified Grayson boundaries redefined; lost control of Overlap Area 1 to Collin and Denton; lost to creation of Non-County Area 13. Overlap Area 1 eliminated.
    with Collinwith Dentonno change
    · Texas Laws 1847, 2d leg., ch. 11/p. 9
  6. 1848
    Boundary clarified Boundary between Grayson and Collin clarified (no change).
    with Collinno change
    · Texas Laws 1847, 2d leg., ch. 18/p. 13
  7. 1848
    Lost territory Part of Fannin Land District attached to Grayson lost to creation of Cooke.
    to Cooke
    · Texas Laws 1847, 2d leg., ch. 130/p. 183
  8. 1852
    Gained territory Grayson gained from Denton.
    from Denton
    · Texas Laws 1851, 4th leg., reg. sess., ch. 41/p. 32
  9. 1854
    Changed Cooke and Denton Land Districts re-organized; implicitly ended the attachment of non-county areas in Fannin Land District to Collin and Grayson.
    Collin
    · Texas Laws 1853, 5th leg., ch. 72/p. 100
  10. 1856
    Boundary clarified Boundary between Grayson and Cooke clarified (no change).
    with Cookeno change
    · Texas Laws 1855, 6th leg., reg. sess., ch. 51/p. 49

Land and parcels

What the maps cover in Grayson

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

Grayson by the Census

Population
135,543 2020 Census count
Housing units
58,572 2020 Census count
Land area
933 square miles
Water area
46 square miles
People per sq mi
145 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.

GIS and maps

County government

See your own lot on these maps

Open Grayson 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.

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Questions

Common questions about Grayson County

When was Grayson County founded?
Grayson County was founded in 1846, and named after Peter W. Grayson.
What is the county seat of Grayson County?
The county seat of Grayson County is Sherman.
Is there an online parcel map for Grayson County?
Yes. Grayson County publishes a parcel map of 86,985 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Grayson County's boundary or name changed?
Grayson County was created in 1846. Since then the Atlas of Historical County Boundaries records 6 later changes, chiefly involving Collin County, Denton County and Cooke County.
Is my lot in a flood zone?
We do not have flood maps for Grayson 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