When was Hidalgo County founded?

Hidalgo County was founded in 1920, formed from Grant County, and named after Villa de Guadalupe Hidalgo.

What is the county seat of Hidalgo County?

The county seat of Hidalgo County is Lordsburg.

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

Hidalgo County was created in 1920 from Grant County. The Atlas of Historical County Boundaries records no boundary change since.

Is my lot in a flood zone?

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

County · code 35023

Hidalgo CountyNew Mexico

Hidalgo County is a county in New Mexico with its seat in Lordsburg. It was formed in 1920 from Grant County and named after Villa de Guadalupe Hidalgo.

Founded1920
County seatLordsburg
Named forVilla de Guadalupe Hidalgo
Land area3,439 sq mi + 9.1 sq mi water
Population4,178 2020 Census

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

Updated 19 October 2026

Census outline · seat marked

History

Formed in 1920 from Grant County

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

Hidalgo County was created in 1920 from Grant County.

Boundary changes from the Newberry Library, Atlas of Historical County Boundaries.

1920
Hidalgo County created Hidalgo created from Grant.
from Grant
1 January 1920 · N.M. Laws 1919, 4th reg. sess., ch. 11/pp. 11-12

Land and parcels

What the maps cover in Hidalgo

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

Parcels Missing

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

No public address points layer found for Hidalgo 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

Hidalgo by the Census

Population

4,178 2020 Census count

Housing units

2,190 2020 Census count

Land area

3,439 square miles

Water area

9.1 square miles

People per sq mi

1 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

Hidalgo 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 Hidalgo County.
hidalgocounty.org

See your own lot on these maps

Open Hidalgo 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 Hidalgo County

When was Hidalgo County founded?: Hidalgo County was founded in 1920, formed from Grant County, and named after Villa de Guadalupe Hidalgo.
What is the county seat of Hidalgo County?: The county seat of Hidalgo County is Lordsburg.
Is there an online parcel map for Hidalgo 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 Hidalgo County's boundary or name changed?: Hidalgo County was created in 1920 from Grant County. The Atlas of Historical County Boundaries records no boundary change since.
Is my lot in a flood zone?: We do not have flood maps for Hidalgo County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.

Nearby