Colby

#2,822 for girls in 2025, 60 births · #615 for boys in 2025, 455 births
Given to boys 92.8% of the time

Showing
Show data for
Peak · boys
2001 · 3,859 births
Debut · boys
5 births
In top 100 · boys
1 yr
of 146 years
Total births · boys
53,971
since 1888

Colby over time

girlsboys

Rank within each sex, plotted together. Click any year to open it.

#1#10#100#1,000#10,000rank188019001920194019601980200020201978peak #1,030, 1985peak #99, 2001girlsboys
Hover or use arrow keys to read values by year; click or press Enter to open that year.

Gaps mean fewer than 5 babies received the name that year, so the SSA doesn't publish it.

Show data table
Yeargirlsboys
rankbirthsrankbirths
2025#2,82260#615455
2024#3,22549#583490
2023#3,38647#607467
2022#2,68964#600469
2021#2,95856#651420
2020#3,39945#618439
2019#3,27248#612447
2018#3,61442#597459
2017#3,34647#584465
2016#3,99637#529558
2015#3,47845#456665
2014#3,13752#427717
2013#4,33633#400746
2012#3,36448#341909
2011#2,98957#3141,026
2010#2,69166#2801,207
2009#2,56872#2851,152
2008#2,63070#2731,256
2007#2,68468#2831,221
2006#3,56444#2721,272
2005#2,96954#2201,603
2004#2,39671#1852,066
2003#2,08485#1812,170
2002#1,564119#1253,118
2001#1,540120#993,859
2000#1,262155#2341,465
1999#1,309138#2241,507
1998#1,77488#2201,456
1997#1,71890#2291,357
1996#1,551102#2251,344
1995#1,474108#2091,411
1994#1,229142#2001,449
1993#1,271134#2001,519
1992#1,138155#1971,574
1991#1,328124#2021,515
1990#1,265129#2451,129
1989#1,414105#2501,032
1988#1,384102#255922
1987#1,098138#257870
1986#1,142125#253891
1985#1,030146#286715
1984#1,080129#276759
1983#1,42382#300656
1982#2,90131#360494
1981#4,34417#539242
1980#2,86631#531262
1979#2,93129#478298
1978#3,09825#479289
1977#2,21641#467298
1976#2,09941#432320
1975#2,06042#413350
1974#2,06640#435330
1973#2,68926#445309
1972#3,06221#551209
1971#3,37319#559209
1970#3,31119#695142
1969#4,19812#84183
1968#4,48910#84474
1967—#1,15042
1966—#1,21638
1965#5,8176#1,36032
1964#6,0096#1,46229
1963#5,8916#1,35433
1962#5,8606#1,54626
1961—#1,23341
1960—#1,40032
1959#6,2455#1,46729
1958#6,1035#1,67722
1957#6,0865#1,41131
1956#5,9525#1,48028
1955#3,09514#1,53825
1954#5,1486#1,76219
1953#3,9559#1,90017
1952#3,7969#1,48526
1951—#2,05514
1950#4,3157#2,01914
1949—#1,50124
1948—#1,46025
1947—#1,85017
1946—#2,6908
1945—#1,77215
1944—#1,73816
1943—#2,40510
1942—#2,5239
1941—#2,8727
1940—#3,1306
1939—#2,4499
1938—#2,32610
1937—#2,9057
1936—#2,8547
1935—#2,39610
1934—#3,2776
1933—#3,2686
1932—#3,7765
1931—#3,7635
1930—#3,0228
1929—#3,9595
1928—#2,8439
1927—#2,70310
1926—#3,1398
1925—#3,1558
1924—#3,0239
1923—#3,4677
1922—#3,2528
1921—#2,37613
1920—#2,33613
1919—#3,1158
1918—#3,3687
1917—#2,7329
1916—#2,9268
1915——
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1911——
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1888—#1,0315
1887——
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First appearance
1888

The first year at least five boys were named Colby! It came in at #1,031, and was given to 5 baby boys.


Quietest stretch: 1888–1915, when fewer than 6 boys a year got the name.

Where Colby is popular in 1978

  • Rank in state
  • Top 10
  • 11–50
  • 51–100
  • 101–500
  • 501+
  • Not published
Alaska: fewer than 5 boys named Colby, so not publishedAKMaine: fewer than 5 boys named Colby, so not publishedMEVermont: fewer than 5 boys named Colby, so not publishedVTNew Hampshire: fewer than 5 boys named Colby, so not publishedNHWashington: #219 for boys · 15 births · 1 in 1,785 boysWAIdaho: #148 for boys · 9 births · 1 in 885 boysIDMontana: fewer than 5 boys named Colby, so not publishedMTNorth Dakota: fewer than 5 boys named Colby, so not publishedNDMinnesota: fewer than 5 boys named Colby, so not publishedMNIllinois: #862 for boys · 5 births · 1 in 15,878 boysILWisconsin: fewer than 5 boys named Colby, so not publishedWIMichigan: fewer than 5 boys named Colby, so not publishedMINew York: #667 for boys · 11 births · 1 in 10,023 boysNYMassachusetts: fewer than 5 boys named Colby, so not publishedMARhode Island: fewer than 5 boys named Colby, so not publishedRIOregon: #223 for boys · 10 births · 1 in 1,811 boysORNevada: fewer than 5 boys named Colby, so not publishedNVWyoming: fewer than 5 boys named Colby, so not publishedWYSouth Dakota: fewer than 5 boys named Colby, so not publishedSDIowa: fewer than 5 boys named Colby, so not publishedIAIndiana: fewer than 5 boys named Colby, so not publishedINOhio: #675 for boys · 5 births · 1 in 15,414 boysOHPennsylvania: #413 for boys · 11 births · 1 in 6,670 boysPANew Jersey: fewer than 5 boys named Colby, so not publishedNJConnecticut: fewer than 5 boys named Colby, so not publishedCTCalifornia: #609 for boys · 20 births · 1 in 8,446 boysCAUtah: #127 for boys · 22 births · 1 in 812 boysUTColorado: #291 for boys · 8 births · 1 in 2,516 boysCONebraska: #187 for boys · 7 births · 1 in 1,657 boysNEMissouri: #342 for boys · 8 births · 1 in 4,370 boysMOKentucky: fewer than 5 boys named Colby, so not publishedKYWest Virginia: fewer than 5 boys named Colby, so not publishedWVVirginia: fewer than 5 boys named Colby, so not publishedVAMaryland: #283 for boys · 7 births · 1 in 3,049 boysMDDelaware: fewer than 5 boys named Colby, so not publishedDEArizona: fewer than 5 boys named Colby, so not publishedAZNew Mexico: fewer than 5 boys named Colby, so not publishedNMKansas: #250 for boys · 7 births · 1 in 2,226 boysKSArkansas: #305 for boys · 5 births · 1 in 2,948 boysARTennessee: fewer than 5 boys named Colby, so not publishedTNNorth Carolina: fewer than 5 boys named Colby, so not publishedNCSouth Carolina: fewer than 5 boys named Colby, so not publishedSCDistrict of Columbia: fewer than 5 boys named Colby, so not publishedDCOklahoma: #315 for boys · 7 births · 1 in 2,836 boysOKLouisiana: #303 for boys · 17 births · 1 in 1,944 boysLAMississippi: fewer than 5 boys named Colby, so not publishedMSAlabama: fewer than 5 boys named Colby, so not publishedALGeorgia: #402 for boys · 10 births · 1 in 3,776 boysGAHawaii: fewer than 5 boys named Colby, so not publishedHITexas: #375 for boys · 38 births · 1 in 3,029 boysTXFlorida: fewer than 5 boys named Colby, so not publishedFL

Hover or tap a state for its numbers.

Top states · boys
  1. Utah#127 · 1 in 812
  2. Idaho#148 · 1 in 885
  3. Nebraska#187 · 1 in 1,657
  4. Washington#219 · 1 in 1,785
  5. Oregon#223 · 1 in 1,811

Best ever in a state: #15 in Maine, 2002.

Show every state
StateRankBirthsShare
Utah#127221 in 812
Idaho#14891 in 885
Nebraska#18771 in 1,657
Washington#219151 in 1,785
Oregon#223101 in 1,811
Kansas#25071 in 2,226
Maryland#28371 in 3,049
Colorado#29181 in 2,516
Louisiana#303171 in 1,944
Arkansas#30551 in 2,948
Oklahoma#31571 in 2,836
Missouri#34281 in 4,370
Texas#375381 in 3,029
Georgia#402101 in 3,776
Pennsylvania#413111 in 6,670
California#609201 in 8,446
New York#667111 in 10,023
Ohio#67551 in 15,414
Illinois#86251 in 15,878
Alabama———
Alaska———
Arizona———
Connecticut———
Delaware———
District of Columbia———
Florida———
Hawaii———
Indiana———
Iowa———
Kentucky———
Maine———
Massachusetts———
Michigan———
Minnesota———
Mississippi———
Montana———
Nevada———
New Hampshire———
New Jersey———
New Mexico———
North Carolina———
North Dakota———
Rhode Island———
South Carolina———
South Dakota———
Tennessee———
Vermont———
Virginia———
West Virginia———
Wisconsin———
Wyoming———

Ranks are within each state; “1 in N” is out of the boys born there that year. The SSA only publishes a name in a state when 5 or more babies of one sex got it.

See more about Colby
Momentum · boys
Holding steady
  • 32 spots since 2024 (#583 → #615)
  • 3 spots since 2020 (#618 → #615)
  • 159 spots since 2015 (#456 → #615)
  • Biggest jump: 306 spots in 1968 (#1,150 → #844)
  • Biggest drop: 73 spots in 2016 (#456 → #529)
Rise & fade · boys
113 yrs to peak
  • Debuted 1888
  • Peaked 2001 at #99 (3,859 births)
  • Births halved by 2005, 4 yrs later
Top of the charts · boys
Top 100 for 1 yr
  • Top 10: never
  • Top 100: 1 yr · 2001
  • Top 1,000: 58 yrs · run 1968–2025
Share of babies · boys
1 in 503
  • Highest: 1 in 503 boys born in 2001 were named Colby (0.20%)
  • Latest: 1 in 3,754 boys born in 2025 (0.03%)
Era · boys
The 2000s
  • 35.5% of all boys named Colby (19,182) were born in this decade
Girls or boys?
Never flipped
  • The majority has never changed
all girlsall boys
Show by decade
DecadeBirthsBest rankAvg rank
1880s5#1,031 (1888)#1,031
1890s0——
1900s0——
1910s32#2,732 (1917)#3,035
1920s90#2,336 (1920)#3,025
1930s73#2,326 (1938)#3,004
1940s137#1,460 (1948)#2,194
1950s225#1,411 (1957)#1,679
1960s430#841 (1969)#1,241
1970s2,754#413 (1975)#495
1980s6,843#250 (1989)#331
1990s14,261#197 (1992)#215
2000s19,182#99 (2001)#216
2010s7,199#280 (2010)#454
2020s2,740#583 (2024)#612

All figures count published births only (names given to at least 5 boys in a year). Registrations before 1937 are incomplete, so early shares and totals run low.

Colby in 1978

girls
#3,098
25 births · 1 in 61,274 girls
boys
#479
289 births · 1 in 5,681 boys

Top girls' names in 1978

  1. #1Jennifer56,314
  2. #2Melissa28,327
  3. #3Jessica26,102
  4. #4Amy23,213
  5. #5Heather22,270
  6. #6Amanda20,520
  7. #7Angela20,517
  8. #8Sarah19,976
  9. #9Michelle18,856
  10. #10Nicole17,279
  11. #3,098Colby25

Top boys' names in 1978

  1. #1Michael67,127
  2. #2Jason51,600
  3. #3Christopher47,236
  4. #4David40,684
  5. #5James39,894
  6. #6Matthew34,282
  7. #7John34,014
  8. #8Robert33,374
  9. #9Brian29,432
  10. #10Joseph26,663
  11. #479Colby289
More about 1978

girls

1,531,859 girls got a published name in 1978; 1 in 61,274 of them was named Colby, which outranked 73.0% of the 11,475 girls' names that year. The ten most popular names covered 16.5% of girls (24.6% in 1880, 7.0% in 2025).

Ranked beside Colby
  1. #3,009Vida26
  2. #3,009Vincent26
  3. #3,009Zara26
  4. #3,098Colby25
  5. #3,098Aesha25
  6. #3,098Alanda25
  7. #3,098Alica25
  8. #3,196Abbe24
  9. #3,196Akia24
  10. #3,196Aleasha24

Tied with 97 names at #3,098; 3 shown. Tied names share a rank, as in SSA's lists.

Biggest movers since 1977
Risers
  1. ↑ 4,240Aja#4,652 → #412
  2. ↑ 1,987Kiley#2,606 → #619
  3. ↑ 1,951Kylee#2,838 → #887
  4. ↑ 1,785Winter#2,780 → #995
  5. ↑ 1,620Kylie#2,026 → #406
Fallers
  1. ↓ 913Shalon#868 → #1,781
  2. ↓ 760Farah#854 → #1,614
  3. ↓ 519Tennille#462 → #981
  4. ↓ 398Shawnte#740 → #1,138
  5. ↓ 362Farrah#177 → #539

Among names in the top 1,000 of either year.

boys

1,641,837 boys got a published name in 1978; 1 in 5,681 of them was named Colby, which outranked 92.9% of the 6,762 boys' names that year. The ten most popular names covered 24.6% of boys (44.2% in 1880, 8.0% in 2025).

Ranked beside Colby
  1. #476Donovan293
  2. #476Landon293
  3. #478Saul291
  4. #479Colby289
  5. #480Timmy286
  6. #481Reggie284
  7. #482Isaiah283
Biggest movers since 1977
Risers
  1. ↑ 3,237Dequan#4,164 → #927
  2. ↑ 626Nicholaus#1,367 → #741
  3. ↑ 617Nicklaus#1,515 → #898
  4. ↑ 578Zebulon#1,476 → #898
  5. ↑ 424Anwar#1,121 → #697
Fallers
  1. ↓ 674Kinte#834 → #1,508
  2. ↓ 668Kunta#572 → #1,240
  3. ↓ 417Telly#732 → #1,149
  4. ↓ 415Lesley#937 → #1,352
  5. ↓ 310Amin#904 → #1,214

Among names in the top 1,000 of either year.

See the top 100 for 1978 →