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2025 Compare Cities People:
Rialto, CA vs Altadena, CA

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Highlights
- Altadena is 0% more densely populated than Rialto.
- People are 8.1% more likely to be married in Altadena.
- The Median Age is 12.9 years older in Altadena.
 Rialto, CAAltadena, CAUnited States
 Population  Unlock43,384329,725,481
 Female Population50.9%  Unlock50.5%
 Male Population49.1%  Unlock49.5%
 Median Age  Unlock43.938.4
 space3
 Population - 201099,567  Unlock309,327,143
 Population - 2000  Unlock42,610285,036,114
 Population - 199072,388  Unlock251,960,433
 Pop. 2000 to Now  Unlock4.8%15.6%
 Pop. 1990 to Now43.9%  Unlock30.8%
 space4
 Population Density  Unlock5,124.593.4
 Land Area23.9  Unlock3,531,905.4
 Water Area  Unlock0.0264,836.8
 space
 Est. Total Population By Age
 Rialto, CAAltadena, CAUnited States
 Age 0 to 46.7%  Unlock5.9%
 Age 5 to 9  Unlock5.5%6.1%
 Age 10 to 148.3%  Unlock6.6%
 Age 15 to 17  Unlock3.5%3.9%
 Age 18 to 204.8%  Unlock4.0%
 Age 21 to 24  Unlock3.4%5.2%
 Age 25 to 3415.8%  Unlock13.8%
 Age 35 to 44  Unlock13.0%12.9%
 Age 45 to 5411.4%  Unlock12.6%
 Age 55 to 59  Unlock8.2%6.7%
 Age 60 to 644.4%  Unlock6.3%
 Age 65 to 74  Unlock10.5%9.6%
 Age 75 to 842.6%  Unlock4.5%
 Age 85 and over  Unlock2.7%1.9%
 space1
 Race
 Rialto, CAAltadena, CAUnited States
 White8.8%  Unlock59.4%
 Black  Unlock19.8%12.2%
 Asian2.1%  Unlock5.6%
 Native American  Unlock0.1%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.4%0.4%
 Two or More Races1.2%  Unlock3.2%
 Hispanic  Unlock29.3%18.4%
 space2
 Marriage & Family
 Rialto, CAAltadena, CAUnited States
 Married Population46.1%  Unlock49.8%
     Currently Married  Unlock48.0%48.0%
 Married but Separated2.7%  Unlock1.8%
 Single Population  Unlock50.2%50.2%
 Never Married42.6%  Unlock33.8%
 Divorced  Unlock11.3%10.8%
 Widowed3.7%  Unlock5.6%
 space5
 Household Size  Unlock2.892.60
 Households26,726  Unlock124,010,992
 Family Households  Unlock10,75380,755,759
     Married couple, w/children35.6%  Unlock30.5%
     Married couple, no children  Unlock42.0%42.9%
 Non Family Households4,627  Unlock43,255,233
     Single householder, w/children  Unlock14.4%15.8%
     Single householder, no children11.3%  Unlock10.8%
Voting
Reviews for Rialto    7 Reviews
Juan · Rialto, CA
Rialto has shown much growth
Over 3 years ago

I have lived in Rialto my entire life, I am now 26, and I have seen substantial growth in the last 10 years. Mayor Deborah Robertson has done an excellent job making  More

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ALEX · Rialto, CA
city on the move to the future
Over 5 years ago

Rialto has come a long way lots of places to shop and eat catch a movie friendly people  More

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Alesha  · Rialto, CA
New College Grads
Over 17 years ago

I live in Rialto, about 1 hour outside of Los Angeles, and even though it is cheaper than Los Angeles, the average college graduate cannot afford to stay here. First,  More

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Reviews for Altadena    1 Reviews
Les · Altadena, CA
Altadena: High and Dry in L.A.
Over 15 years ago

I live just above the 1500 foot elevation at the edge of the San Gabriel Mountains in the L.A. suburb of Altadena--just above Pasadena. We're above the low morning fog  More

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Learn More About Rialto, California
Overview
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Learn More About Altadena, California
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