Casa Blanca, Arizona

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Casa Blanca, Arizona
Location of Casa Blanca in Pinal County, Arizona.
Location of Casa Blanca in Pinal County, Arizona.
Casa Blanca, Arizona is located in the United States
Casa Blanca, Arizona
Casa Blanca, Arizona
Location in the United States
Coordinates: 33°07′13″N 111°53′17″W / 33.12028°N 111.88806°W / 33.12028; -111.88806Coordinates: 33°07′13″N 111°53′17″W / 33.12028°N 111.88806°W / 33.12028; -111.88806
CountryUnited States
 • Total15.79 sq mi (40.91 km2)
 • Land15.79 sq mi (40.91 km2)
 • Water0.00 sq mi (0.00 km2)
 • Total3,363
 • Estimate 
Time zoneUTC-7 (MST (no DST))
FIPS code04-10460

Casa Blanca is a census-designated place (CDP) in Pinal County, Arizona, United States, located in the Gila River Indian Community. The population was 1,388 at the 2010 census.


Antebellum Years[edit]

Casa Blanca, formerly known to the Mexicans as La Tierra Amontonada (The Land Piled Up), named for the Hohokam ruin mound nearby, was one of the Pima Villages on the Gila River in what was then part of the state of Sonora, Mexico.[3] It was encountered by the American expedition of Stephen W. Kearny in 1846 and later by Americans on their way to California on the Southern Emigrant Trail during the California Gold Rush. Following the Gadsden Purchase the Pima Villages became part of New Mexico Territory. In 1857, the San Antonio-San Diego Mail Line passed through the village on the way between Maricopa Wells and Tucson.

In 1858 when Lieutenant A. B. Chapman, of the 1st Dragoons, took the first census of the Pimas and Maricopas, he found a Pima population of 535; 110 warriors, 425 women and children led by a Captain named Chelan at this village now named Casa Blanca.[4] The next year another official census was taken by the special Indian Agent that showed Casa Blanca had 491 Pimas, broken down as 50 Aged, 146 Men, 103 Women, 105 Boys, 87 Girls, led by Captain Candela. Also enumerated were 30 cattle and 46 horses. [5] The 1860 Census showed a total Pima population of 323 composed of 71 Male heads of household, 66 Female heads, 82 Male Children 87 female children and 17 Other males and females.[6] It also show they had 164 horses and 102 cattle and 59 farmers tilled 587 acres of improved land.[7]

Casa Blanca became the site of the Casa Blanca Station of the Butterfield Overland Mail in 1858. It was located about 4,200 feet west-northwest of the Casa Blanca ruin mound.[8]

The station agent of Casa Blanca Station, Silas St. John, also became Special Agent for the Pima and Maricopa Indians on February 18, 1859, and later that year built the Indian Agency buildings for the Pima Villages in the village in 1859. These consisted of two buildings with a picket fence or corral between them. located about 3,500 feet northwest of the ruin mound at Casa Blanca and some 800 feet from the stage station. One, an adobe, was a blacksmith shop, the other of jacal construction, was a carpenter shop and agency office.[9]

In 1860, the census showed fifteen European Americans at Casa Blanca who were part of Ammi M. White's enterprise there. White, with his half-brother, Cyrus Lennan, and partner E.S. Noyes, established a trading post at Casa Blanca. White & Co. had taken over the buildings of St.John's Indian agency, (after his resignation from that post in late 1859), which included a blacksmith shop, run by Noyes.[9]

White's Mill and the Civil War[edit]

White's Mill would be established at Casa Blanca in 1861 to turn the Pima's grain into flour.[10] At the beginning of the American Civil War, Ammi White began stockpiling flour and other food for the California Column at the mill, which became the target of a raid by the Arizona Rangers a Confederate Army detachment sent to occupy southern Arizona. Led by Captain Sherod Hunter, the raid destroyed the mill machinery, captured Ammi White and returned the flour and other food to the Pima. When Captain Hunter impersonated White and his men posed as locals, they also captured Union Army Captain William McCleave and his detachment who came to visit the mill.

Once the California Column arrived they found they had to wait to gather up flour and food to continue their march to Tucson and so they built Fort Barrett around the mill to protect their depot there. After the capture of Tucson the post was abandoned except as a post for vedettes and express riders. Ammi White was later exchanged, as the Confederate Army retreated from New Mexico Territory, returning to rebuild his mill which, with the increased production of the Pima farmers, helped to feed the Union Army and the local population of the territory during the rest of the war. After White sold the mill and moved away in 1867, it was destroyed in a flood in September 1868. Subsequently, the machinery was salvaged and moved to Adamsville.[11]


Historical population
Census Pop.
U.S. Decennial Census[12]

As of the census[13] of 2010, there were 1,388 people residing in the CDP. The population density was 87.9 people per square mile. The racial makeup of the CDP was 1.01% White, 0.29% Black or African American, 96.04% Native American, 0.14% Asian, 0.94% from other races, and 1.59% from two or more races. 13.04% of the population were Hispanic or Latino of any race.


  1. ^ "2016 U.S. Gazetteer Files". United States Census Bureau. Retrieved Jul 18, 2017.
  2. ^ "Population and Housing Unit Estimates". Retrieved June 9, 2017.
  3. ^ John P. Wilson, Peoples of the Middle Gila: A Documentary History of the Pimas and Maricopas, 1500's - 1945, Researched and Written for the Gila River Indian Community, Sacaton, Arizona, 1999, pp.71-73.
  4. ^ Lieutenant Chapman's census was printed in the Annual Report of the Commissioner of Indian Affairs, 1858, as an appendix to Special Agent G. Bailey's report of November 4th on the Indians of southern Arizona and New Mexico. United States. Office of Indian Affairs / Annual report of the commissioner of Indian affairs, for the year 1858, New Mexico superintendency, pp.202-208
  5. ^ "On even brief analysis, this census bears little resemblance to reality. The most curious thing about it is why, after he counted almost 400 fewer persons, St. John should have thought that the earlier census was incomplete. The numbers suggest that the reverse may have been the case (St. John to Greenwood, September 16, 1859; Hackenberg 1974a I: 296, 306-307). St. John's tabulations suggest that he drastically undercounted the number of children, or overstated the number of adult men and women, if not both. The clue is that for neither the Pimas nor the Maricopas did the combined total of boys and girls even equal the number of women, which would mean less than one child per family, a population in a precipitous decline. This, as the regular census of 1860 shows, was not the case. He may however have encouraged nearly all of the adult males to be present, in order not to miss out on the manta and other clothing, tobacco, beads and farm implements handed out in September." from John Philip Wilson, Peoples of the Middle Gila: A Documentary History of the Pimas and Maricopas, 1500's-1945, Gila River Indian Community (Arizona: Association), Sacaton, Arizona, 1999, p.153
  6. ^ Wilson, Peoples of the Middle Gila, 1999, p.166 Schedule 1 - 8 Pima Villages
  7. ^ Wilson, Peoples of the Middle Gila, 1999, p.167 Schedule 4 - 8 Pima Villages
  8. ^ Wilson, Peoples of the Middle Gila, 1999, p.147
  9. ^ a b Wilson, Peoples of the Middle Gila, 1999, p. 144, 147
  10. ^ Wilson, Peoples of the Middle Gila, 1999, p.162
  11. ^ Wilson, John P., Peoples of the Middle Gila: A Documentary History of the Pimas and Maricopas, 1500's-1945, Las Cruces, N.M., 1999. pp.162 181-182, 218-219
  12. ^ "Census of Population and Housing". Retrieved June 4, 2016.
  13. ^ "Archived copy". Archived from the original on 2011-07-21. Retrieved 2011-04-27.CS1 maint: archived copy as title (link)