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2026 Compare Cities People:
Alamosa, CO vs Centennial, CO

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Highlights
- Centennial is 0% more densely populated than Alamosa.
- People are 66.0% more likely to be married in Centennial.
- The Median Age is 12.7 years older in Centennial.
 Alamosa, COCentennial, COUnited States
 Population  Unlock107,972329,725,481
 Female Population50.1%  Unlock50.5%
 Male Population49.9%  Unlock49.5%
 Median Age  Unlock41.438.4
 space3
 Population - 20108,907  Unlock309,327,143
 Population - 2000  Unlock100,309285,036,114
 Population - 19907,579  Unlock251,960,433
 Pop. 2000 to Now  Unlock9.8%15.6%
 Pop. 1990 to Now23.6%  Unlock30.8%
 space4
 Population Density  Unlock3,650.593.4
 Land Area7.4  Unlock3,531,905.4
 Water Area  Unlock0.1264,836.8
 space
 Est. Total Population By Age
 Alamosa, COCentennial, COUnited States
 Age 0 to 46.5%  Unlock5.9%
 Age 5 to 9  Unlock6.5%6.1%
 Age 10 to 148.8%  Unlock6.6%
 Age 15 to 17  Unlock4.1%3.9%
 Age 18 to 2010.8%  Unlock4.0%
 Age 21 to 24  Unlock3.5%5.2%
 Age 25 to 3414.5%  Unlock13.8%
 Age 35 to 44  Unlock14.8%12.9%
 Age 45 to 547.5%  Unlock12.6%
 Age 55 to 59  Unlock7.0%6.7%
 Age 60 to 645.3%  Unlock6.3%
 Age 65 to 74  Unlock10.2%9.6%
 Age 75 to 842.2%  Unlock4.5%
 Age 85 and over  Unlock1.9%1.9%
 space1
 Race
 Alamosa, COCentennial, COUnited States
 White37.2%  Unlock59.4%
 Black  Unlock2.6%12.2%
 Asian1.6%  Unlock5.6%
 Native American  Unlock0.2%0.6%
 Hawaiian, Pacific Islander0.1%  Unlock0.2%
 Other  Unlock0.5%0.4%
 Two or More Races3.1%  Unlock3.2%
 Hispanic  Unlock9.0%18.4%
 space2
 Marriage & Family
 Alamosa, COCentennial, COUnited States
 Married Population36.2%  Unlock49.8%
     Currently Married  Unlock59.4%48.0%
 Married but Separated1.1%  Unlock1.8%
 Single Population  Unlock39.8%50.2%
 Never Married46.2%  Unlock33.8%
 Divorced  Unlock10.9%10.8%
 Widowed4.0%  Unlock5.6%
 space5
 Household Size  Unlock2.632.60
 Households3,956  Unlock124,010,992
 Family Households  Unlock29,97980,755,759
     Married couple, w/children35.2%  Unlock30.5%
     Married couple, no children  Unlock46.3%42.9%
 Non Family Households1,947  Unlock43,255,233
     Single householder, w/children  Unlock10.7%15.8%
     Single householder, no children12.4%  Unlock10.8%
Voting
Reviews for Alamosa    5 Reviews
Kimber · Blanca, CO
Crawling with drug addicts!
Over 5 years ago

Rating 1 out of 5 This place is absolutely Crawling with meth and heroin addicts. They roam the streets, they constantly knock on your door asking for rides and money.  More

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Catharine · Alamosa, CO
A good place to retire and live like a hermit, but
Over 11 years ago

If want to retire in a nice, quiet place where you can live in isolation, you have a steady stream of income from an outside source, you don't have anything valuable  More

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Troy · Fountain, CO
Alamosa Sucks
Over 13 years ago

Honestly Alamosa is probably the worst place ever..It sucks..Especially being African-American here..The people show signs of racism which is confusing to me seeing that  More

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Reviews for Centennial    2 Reviews
Lori · Littleton, CO
Excellent Schools
Over 10 years ago

All the schools are excellent. We have both Littleton Public Schools and Cherry Creek Schools. Top Notch - College Prep - Commitment to  More

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Amy Zukowski, Realtor · Aurora, CO
Centennial CO - Amazing Schools, Easy Commute to B
Over 12 years ago

The Centennial/Aurora area (zip code 80015) has great schools (Cherry Creek School District), attractive homes, family oriented neighborhoods, and is an easy commute To  More

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Learn More About Alamosa, Colorado
Overview
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Learn More About Centennial, Colorado
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