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Santa Cruz County, Arizona facts for kids

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Santa Cruz County
Santa Cruz County Courthouse
Santa Cruz County Courthouse
Official seal of Santa Cruz County
Seal
Map of Arizona highlighting Santa Cruz County
Location within the U.S. state of Arizona
Map of the United States highlighting Arizona
Arizona's location within the U.S.
Country  United States
State  Arizona
Founded March 15, 1899
Named for Santa Cruz River
Seat Nogales
Largest city Nogales
Area
 • Total 1,238 sq mi (3,210 km2)
 • Land 1,237 sq mi (3,200 km2)
 • Water 1.2 sq mi (3 km2)  0.1%
Population
 (2020)
 • Total 47,669
 • Estimate 
(2023)
49,158 Increase
 • Density 38.505/sq mi (14.867/km2)
Time zone UTC−7 (Mountain)
Congressional district 7th

Santa Cruz County is a special area called a county in southern Arizona, United States. It's like a big neighborhood with its own local government. In 2020, about 47,669 people lived here. The main town, or county seat, is Nogales.

Santa Cruz County was created in 1899. It shares borders with Pima County to the north and west, Cochise County to the east, and the country of Mexico (specifically the state of Sonora) to the south. The county is part of a larger area that includes Tucson, making it an important place for both local life and bigger regional connections.

History of Santa Cruz County

Santa Cruz River - Kino Springs AZ
The Santa Cruz River flows north near Kino Springs after entering the U.S. from Mexico.

Santa Cruz County was officially formed on March 15, 1899. It was created from a part of what was then Pima County. The county gets its name from the Santa Cruz River. This river starts in the Canelo Hills within the eastern part of the county. It then flows south into Mexico near the town of Santa Cruz, Sonora. After a bend, it flows back north into the United States, re-entering Santa Cruz County east of Nogales.

Early Explorers and Missions

In the 1690s, an Italian explorer and missionary named Father Eusebio Kino explored this area for the Spanish Empire. He named the Santa Cruz River, which means "holy cross" in Spanish. Father Kino also started several missions to teach the O'odham peoples living along the Santa Cruz River. These missions included San Cayetano del Tumacácori (1691) and San Gabriel de Guevavi (1691). He also founded Los Reyes de Sonoita (1692) near Sonoita Creek.

Some of Kino's missions were destroyed in the O'odham peoples' 1751 Pima Revolt. They were later rebuilt as Missions Los Santos Ángeles de Guevavi (1751), San José de Tumacácori (1753), and San Cayetano de Calabazas (1756). Today, you can see the ruins of these three later missions at Tumacácori National Historical Park.

Geography of Santa Cruz County

AZ 82 in Nogales
The junction of Arizona State Route 82 and Business-Loop 19 in Nogales.

Santa Cruz County covers about 1,238 square miles. Most of this area, about 1,237 square miles, is land. Only a small part, about 1.2 square miles, is water. It is the smallest county in Arizona by land area.

Neighboring Areas

Santa Cruz County shares its borders with several other counties and towns:

Main Roads and Highways

Important roads help people travel through Santa Cruz County:

Protected Natural Areas

Parts of these special natural areas are found in Santa Cruz County:

Border Crossings to Mexico

There are three main places where people can cross the U.S.-Mexico border in Nogales:

  • The Dennis DeConcini Port of Entry for cars and people.
  • The Nogales-Mariposa Port of Entry in the western part of the city for cars and people.
  • The Morley Gate Port of Entry for people walking only.

The town of Lochiel used to have a border crossing, but it was closed in 1983.

Population and People

Historical population
Census Pop.
1900 4,545
1910 6,766 48.9%
1920 12,689 87.5%
1930 9,684 −23.7%
1940 9,482 −2.1%
1950 9,417 −0.7%
1960 10,808 14.8%
1970 13,966 29.2%
1980 20,459 46.5%
1990 29,676 45.1%
2000 38,381 29.3%
2010 47,420 23.6%
2020 47,669 0.5%
2023 (est.) 49,158 3.7%
U.S. Decennial Census
1790–1960 1900–1990
1990–2000 2010–2020

In 2010, there were 47,420 people living in Santa Cruz County. About 82.8% of the people living here were of Hispanic or Latino background.

Ancestry Groups

Many people in Santa Cruz County have roots from different parts of the world. The largest groups include:

Communities in Santa Cruz County

Santa Cruz County Incorporated and Unincorporated areas
Map of the towns and areas in Santa Cruz County.

Santa Cruz County has different types of communities, from cities to small, spread-out areas.

Cities

  • Nogales is the main city and the county seat.

Towns

Census Designated Places (CDPs)

These are areas that are like towns but don't have their own local government.

Unincorporated Communities

These are smaller communities that are not officially part of a city or town.

Ghost Towns

Some places in Santa Cruz County used to be busy but are now mostly empty. These are called ghost towns.

Education in Santa Cruz County

Students in Santa Cruz County attend schools in different school districts.

School Districts

  • Nogales Unified School District (for all grades, K-12)
  • Santa Cruz Valley Unified School District (for all grades, K-12)
  • Patagonia Union High School District (for high school)
  • Patagonia Elementary District (for elementary school)
  • Santa Cruz Elementary District (for elementary school)
  • Sonoita Elementary District (for elementary school)

Economy of Santa Cruz County

Since Santa Cruz County is the smallest county in Arizona, its economic activities are also smaller. The main type of farming here is growing forage (like hay) for animals. Almost all of the farm products each year come from cattle and other animals raised on this hay and pasture land.

See also

Kids robot.svg In Spanish: Condado de Santa Cruz (Arizona) para niños

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