View source for Summit, Arizona

==Demographics==
{{US Census population
|2020= 4724
|footnote=U.S. Decennial Census<ref name="DecennialCensus">{{Cite web |title=Census of Population and Housing |url=https://www.census.gov/programs-surveys/decennial-census.html |access-date=June 4, 2016 |publisher=Census.gov}}</ref>
| align = right
| align-fn = center
}}

===2020 census===
As of the [[2020 United States census|2020 census]], Summit had a population of 4,724. The median age was 31.5 years. 28.8% of residents were under the age of 18 and 10.6% of residents were 65 years of age or older. For every 100 females there were 104.6 males, and for every 100 females age 18 and over there were 106.3 males age 18 and over.<ref name="Census2020DP">{{cite web|title=2020 Decennial Census Demographic Profile (DP1)|url=https://api.census.gov/data/2020/dec/dp?get=NAME,DP1_0021P,DP1_0024P,DP1_0025C,DP1_0049C,DP1_0045C,DP1_0069C,DP1_0073C,DP1_0125P,DP1_0126P,DP1_0129P,DP1_0133P,DP1_0137P,DP1_0138P,DP1_0139P,DP1_0141P,DP1_0142P,DP1_0143P,DP1_0145P,DP1_0146P,DP1_0147C,DP1_0148C,DP1_0149C,DP1_0156C,DP1_0157C,DP1_0158C,DP1_0159P,DP1_0160P&for=place%3A70240&in=state%3A04|website=United States Census Bureau|year=2021|access-date=April 28, 2026|df=mdy}}</ref><ref name="Census2020PL">{{cite web|title=2020 Decennial Census Redistricting Data (Public Law 94-171)|url=https://api.census.gov/data/2020/dec/pl?get=NAME,P1_001N,P1_003N,P1_004N,P1_005N,P1_006N,P1_007N,P1_008N,P1_009N,P2_001N,P2_002N,H1_001N,H1_002N&for=place%3A70240&in=state%3A04|website=United States Census Bureau|year=2021|access-date=April 28, 2026|df=mdy}}</ref>

87.5% of residents lived in urban areas, while 12.5% lived in rural areas.<ref name="Census2020DHC">{{cite web|title=2020 Decennial Census Demographic and Housing Characteristics (DHC)|url=https://api.census.gov/data/2020/dec/dhc?get=NAME,P2_002N,P2_003N&for=place%3A70240&in=state%3A04|website=United States Census Bureau|year=2023|access-date=April 28, 2026|df=mdy}}</ref>

There were 1,403 households in Summit, of which 42.8% had children under the age of 18 living in them. Of all households, 48.3% were married-couple households, 21.5% were households with a male householder and no spouse or partner present, and 22.8% were households with a female householder and no spouse or partner present. About 19.0% of all households were made up of individuals and 8.1% had someone living alone who was 65 years of age or older.<ref name="Census2020DP"/>

There were 1,560 housing units, of which 10.1% were vacant. The homeowner vacancy rate was 0.7% and the rental vacancy rate was 9.7%.<ref name="Census2020DP"/>

{| class="wikitable"
|+ Racial composition as of the 2020 census<ref name="Census2020PL"/>
! Race !! Number !! Percent
|-
| [[White Americans|White]] || 1,551 || 32.8%
|-
| [[African Americans|Black or African American]] || 28 || 0.6%
|-
| [[Native Americans in the United States|American Indian and Alaska Native]] || 104 || 2.2%
|-
| [[Asian Americans|Asian]] || 24 || 0.5%
|-
| [[Native Hawaiians|Native Hawaiian]] and [[Pacific Islander|Other Pacific Islander]] || 3 || 0.1%
|-
| Some other race || 1,527 || 32.3%
|-
| [[Multiracial Americans|Two or more races]] || 1,487 || 31.5%
|-
| ''[[Hispanic and Latino Americans|Hispanic or Latino]] (of any race)'' || 3,944 || 83.5%
|}

===2000 census===
At the [[2000 United States census|2000 census]], there were 3,702 people, 1,144 households, and 871 families living in the CDP.  The population density was {{convert|365.8|PD/sqmi|PD/km2|sp=us|adj=off}}.  There were 1,259 housing units at an average density of {{convert|124.4|/sqmi|/km2|sp=us|adj=off}}.  The [[Race and ethnicity in the United States Census#2000 census|racial makeup]] of the CDP was 65.9% White, 0.5% Black or African American, 2.2% Native American, 0.1% Asian, <0.1% Pacific Islander, 26.0% from other races, and 5.3% from two or more races.  63.5% of the population were Hispanic or Latino of any race.<ref name="GR2">{{Cite web |title=U.S. Census website |url=https://www.census.gov |access-date=January 31, 2008 |publisher=[[United States Census Bureau]]}}</ref>
Of the 1,144 households, 46.7% had children under the age of 18 living with them, 55.6% were married couples living together, 13.4% had a female householder with no husband present, and 23.8% were non-families. 18.4% of households were one person and 5.9% were one person aged 65 or older.  The average household size was 3.24 and the average family size was 3.68.

The age distribution was 34.8% under the age of 18, 10.0% from 18 to 24, 29.8% from 25 to 44, 18.4% from 45 to 64, and 6.9% 65 or older.  The median age was 29 years. For every 100 females, there were 107.3 males.  For every 100 females age 18 and over, there were 103.7 males.

The median household income was $28,485 and the median family income  was $31,806. Males had a median income of $21,316 versus $21,333 for females. The per capita income for the CDP was $11,274.  About 22.0% of families and 26.2% of the population were below the [[poverty line]], including 42.9% of those under age 18 and 9.0% of those age 65 or over.