Doña Ana County, New Mexico

Doña Ana County is a located in the  of. As of 2000, the population was 174,682. Its is, also the largest city in the county and second-largest in New Mexico. Smaller towns in the county include, , , and Organ..

Geography
According to the, the county has a total area of 9,880 (3,815 ). 9,861 km² (3,807 sq mi) of it is land and 19 km² (7 sq mi) of it (0.20%) is water. The county contains a number of prominent geographical features, most notably the (the flood plain of the  river) going north to south through the center and the  along the county's eastern edge. Other mountain ranges in the county are the, , , the southern end of the , , and , as well as two small, isolated mountains, Tortugas (or A) Mountain on the east and Picacho Peak on the west side of. The county also includes one of New Mexico's four large fields, the Aden Malpais, and one of the world's largest  volcanoes,.

Adjacent Counties

 * - west
 * - north
 * - east
 * - southeast
 * - the Mexican state to the south of Doña Ana County

Demographics
As of the of 2000, there were 174,682 people, 59,556 households, and 42,939 families residing in the county. The was 18/km² (46/sq mi). There were 65,210 housing units at an average density of 7/km² (17/sq mi). The racial makeup of the county was 67.82%, 1.56% or , 1.48% , 0.76% , 0.07% , 24.74% from , and 3.58% from two or more races. 63.35% of the population were or  of any race.

There were 59,556 households out of which 38.40% had children under the age of 18 living with them, 52.40% were living together, 14.70% had a female householder with no husband present, and 27.90% were non-families. 21.30% of all households were made up of individuals and 6.90% had someone living alone who was 65 years of age or older. The average household size was 2.85 and the average family size was 3.36.

In the county the population was spread out with 29.70% under the age of 18, 13.30% from 18 to 24, 27.10% from 25 to 44, 19.30% from 45 to 64, and 10.60% who were 65 years of age or older. The median age was 30 years. For every 100 females there were 96.50 males. For every 100 females age 18 and over, there were 93.50 males.

The median income for a household in the county was $29,808, and the median income for a family was $33,576. Males had a median income of $27,215 versus $20,883 for females. The for the county was $13,999. 25.40% of the population and 20.20% of families were below the poverty line. Out of the total people living in poverty, 34.40% are under the age of 18 and 12.70% are 65 or older.