2025 Compare Cities People:
Columbia, MD vs Walnut Creek, CA

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Highlights
- Walnut Creek is 0% more densely populated than Columbia.
- People are 11.7% more likely to be married in Walnut Creek.
- The Median Age is 8.9 years older in Walnut Creek.
 Columbia, MDWalnut Creek, CAUnited States
 Population  Unlock69,876329,725,481
 Female Population51.9%  Unlock50.5%
 Male Population48.1%  Unlock49.5%
 Median Age  Unlock47.838.4
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 Population - 201098,379  Unlock309,327,143
 Population - 2000  Unlock64,296285,036,114
 Population - 199075,883  Unlock251,960,433
 Pop. 2000 to Now  Unlock8.8%15.6%
 Pop. 1990 to Now43.3%  Unlock30.8%
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 Population Density  Unlock3,537.093.4
 Land Area31.9  Unlock3,531,905.4
 Water Area  Unlock0.0264,836.8
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 Est. Total Population By Age
 Columbia, MDWalnut Creek, CAUnited States
 Age 0 to 45.5%  Unlock5.9%
 Age 5 to 9  Unlock4.5%6.1%
 Age 10 to 146.4%  Unlock6.6%
 Age 15 to 17  Unlock2.9%3.9%
 Age 18 to 203.6%  Unlock4.0%
 Age 21 to 24  Unlock3.2%5.2%
 Age 25 to 3414.4%  Unlock13.8%
 Age 35 to 44  Unlock12.2%12.9%
 Age 45 to 5413.3%  Unlock12.6%
 Age 55 to 59  Unlock6.8%6.7%
 Age 60 to 645.8%  Unlock6.3%
 Age 65 to 74  Unlock14.2%9.6%
 Age 75 to 844.7%  Unlock4.5%
 Age 85 and over  Unlock5.8%1.9%
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 Race
 Columbia, MDWalnut Creek, CAUnited States
 White44.8%  Unlock59.4%
 Black  Unlock2.3%12.2%
 Asian13.3%  Unlock5.6%
 Native American  Unlock0.1%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.1%0.4%
 Two or More Races5.0%  Unlock3.2%
 Hispanic  Unlock10.1%18.4%
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 Marriage & Family
 Columbia, MDWalnut Creek, CAUnited States
 Married Population49.7%  Unlock49.8%
     Currently Married  Unlock54.2%48.0%
 Married but Separated1.4%  Unlock1.8%
 Single Population  Unlock44.5%50.2%
 Never Married34.8%  Unlock33.8%
 Divorced  Unlock10.5%10.8%
 Widowed5.4%  Unlock5.6%
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 Household Size  Unlock2.152.60
 Households40,937  Unlock124,010,992
 Family Households  Unlock18,38880,755,759
     Married couple, w/children30.4%  Unlock30.5%
     Married couple, no children  Unlock55.3%42.9%
 Non Family Households13,474  Unlock43,255,233
     Single householder, w/children  Unlock7.8%15.8%
     Single householder, no children13.9%  Unlock10.8%
Reviews for Columbia    28 Reviews

Over 5 years ago

Lived here for a while, beautiful opportunities, pays well, overall nice  More

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Been here 30 years was great at first but once they added a transit bus from baltimore to columbia 15-18 years ago that was the beginning of the end. And about 5 years  More

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Columbia can be described in one word: unequal. The neighborhood I live in, River Hill, is jam-packed with almost million-dollar homes, while the neighborhoods of Long  More

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Reviews for Walnut Creek    16 Reviews

Apart from the congestion, Walnut Creek is one of the best places in the San Francisco Bay Area to live. It is one of the most compact/walkable cities in the entire area  More

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Over 7 years ago

Almost all of Walnut Creek water comes from Pardee dam through an enclosed pipeline. That water is direct from the high Sierras. Among the best water quality in the  More

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Over 7 years ago

I grew up in Southern California and am no stranger to a more inland California climate. Before moving to WC I lived in San Francisco for 15 years where it is obviously  More

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