San Tan is also the name of a proposed city in Pinal County that is separate from Santan CDP.
There were 163 households out of which 50.9% had children under the age of 18 living with them, 33.1% were married couples living together, 35.6% had a female householder with no husband present, and 16.6% were non-families. 16.0% of all households were made up of individuals and 6.1% had someone living alone who was 65 years of age or older. The average household size was 3.99 and the average family size was 4.30.
In the CDP the population was spread out with 42.2% under the age of 18, 9.1% from 18 to 24, 28.4% from 25 to 44, 14.4% from 45 to 64, and 5.8% who were 65 years of age or older. The median age was 24 years. For every 100 females there were 79.8 males. For every 100 females age 18 and over, there were 84.3 males.
The median income for a household in the CDP was $16,645, and the median income for a family was $15,227. Males had a median income of $37,857 versus $7,386 for females. The per capita income for the CDP was $7,090. About 46.3% of families and 46.2% of the population were below the poverty line, including 77.5% of those under age 18 and none of those age 65 or over.
Due to rapid construction of homes in the northern portion of Pinal County, residents have attempted to petition for the incorporation of San Tan as either a city or a town in 2004, the plan being unveiled in April. Arizona state law requires that any attempt to incorporate an area within 5 miles of a city of over 5,000 residents must first receive approval from that city. The nearby communities of Queen Creek, Mesa, and Gilbert in adjacent Maricopa County had approved of the incorporation. However, an attempt to get approval from the neighboring community of Florence failed later during the summer, stalling the effort.
As of July 1, 2007, the population of the area was estimated to be 45,965, making it the largest single settlement in Pinal County Further attempts at incorporation in 2005 met with failure after supporters supposedly were unable to collect a sufficient number of signatures to advance the issue. Subsequent annexations by Florence in the area have further diminished the likelihood of incorporation, and no serious attempts have been made since.
A renewed effort to incorporate the area was underway as of April, 2008 when local business owners and residents organized the Greater San Tan Area Coalition, a non-governing body to provide some measure of local control over planning efforts. While the coalition did not name incorporation as one of their goals, they did put their support behind a subsequent effort by local real estate agent Bambi Sandquist to explore a new effort to incorporate.
Florence, however, has already expanded their municipal planning area to include the communities in the proposed San Tan area, indicating a desire to annex the land in the future. As any effort to incorporate would therefore require Florence to abandon their plans for the area and may prove to be a large stumbling block to incorporation.