Kooper
Kooper is given to both girls and boys: 28 girls and 218 boys were given it in 2025 (#4,821 among girls’ names and #1,024 among boys’, #1,945 among all names counting both); 4,392 Americans have been recorded with it since 1990 (Social Security Administration, published May 2026).
An estimated 4,350 Americans named Kooper and born in the U.S. are alive in 2026 (99% of everyone recorded); the median is 11 years old and half are between 5 and 16.
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Kooper by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
How popular is Kooper?
#1,024 among boys’ names, 2025
Kooper fell from #1,014 in 2015 to #1,024 in 2025 among boys’ names, although its share of boys born rose from 0.10 to 0.13 per 1,000.
257 babies in 2022, the peak
Kooper peaked in 2022, when 257 babies were given it (230 boys, #980 among boys’ names). The 246 births of 2025 (girls and boys) are 96% of that peak.
Births by sex.
| Year | Births | Rank | Per 1,000 boys |
|---|---|---|---|
| 2025 | 218 | #1,024 | 0.13 |
| 2024 | 201 | #1,085 | 0.12 |
| 2023 | 215 | #1,017 | 0.13 |
| 2022 | 230 | #980 | 0.13 |
| 2021 | 191 | #1,098 | 0.11 |
| 2020 | 177 | #1,112 | 0.10 |
| 2019 | 182 | #1,097 | 0.10 |
| 2018 | 190 | #1,064 | 0.10 |
| 2017 | 181 | #1,083 | 0.10 |
| 2016 | 182 | #1,084 | 0.10 |
Every recorded year (35)
| Year | Births | Rank | Per 1,000 boys |
|---|---|---|---|
| 2015 | 201 | #1,014 | 0.10 |
| 2014 | 178 | #1,084 | 0.09 |
| 2013 | 186 | #1,037 | 0.10 |
| 2012 | 183 | #1,046 | 0.10 |
| 2011 | 170 | #1,094 | 0.09 |
| 2010 | 167 | #1,125 | 0.09 |
| 2009 | 171 | #1,089 | 0.09 |
| 2008 | 149 | #1,190 | 0.07 |
| 2007 | 126 | #1,340 | 0.06 |
| 2006 | 94 | #1,569 | 0.05 |
| 2005 | 86 | #1,599 | 0.04 |
| 2004 | 58 | #2,061 | 0.03 |
| 2003 | 54 | #2,090 | 0.03 |
| 2002 | 31 | #2,985 | 0.02 |
| 2001 | 49 | #2,133 | 0.03 |
| 2000 | 22 | #3,707 | 0.01 |
| 1999 | 25 | #3,236 | 0.01 |
| 1998 | 20 | #3,652 | 0.01 |
| 1997 | 15 | #4,365 | 0.01 |
| 1996 | 14 | #4,513 | 0.01 |
| 1995 | 11 | #5,349 | 0.01 |
| 1994 | 11 | #5,280 | 0.01 |
| 1993 | 13 | #4,589 | 0.01 |
| 1992 | 6 | #7,992 | under 0.01 |
| 1990 | 5 | #8,870 | under 0.01 |
Ranks and shares: boys’ names in each year’s SSA file; share of all boys SSA recorded that year.
Is Kooper a boy’s or a girl’s name?
Of the 4,392 Americans recorded as Kooper, 9% are girls and 91% boys.
Years with fewer than 20 babies given the name are left blank.
Girls and boys named Kooper: the SSA national file counts each sex separately.
How many people are named Kooper, and how old are they?
4,350 alive in 2026, estimated
That is 99% of the 4,392 Americans ever recorded as Kooper. The median Kooper alive today is 11 years old; half are between 5 and 16.
The 2020 Census counted 2,739 people named Kooper (231 women and girls, 2,508 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 3,060 born in the U.S. The Census count is 10% below that prediction. Possible reasons: people who give a short form or another name to the Census, and a survival estimate that can run high.
Alive today, by age
Alive today, by generation
| Generation | Born | Alive |
|---|---|---|
| Millennials | 1981-1996 | 58 |
| Generation Z | 1997-2012 | 1,510 |
| Generation Alpha | 2013-2025 | 2,780 |
An estimate, not a count. SSA’s files count people born in the United States who received a Social Security number, so anyone born abroad is not in them; before 1937 most people got a number as adults, and their survival is counted from that age.
Living estimate: SSA births carried forward with the survival rates in SSA’s cohort life tables (2024 Trustees Report) for each birth year and sex. How the estimate is made. Count: Census Bureau, first names in the 2020 Census (released April 14, 2026; names reported 100 or more times, with the Bureau’s disclosure-avoidance adjustment).
Where are babies named Kooper born?
The states with the most babies named Kooper are Texas, Oklahoma and Ohio, with 40% of its births recorded by state in 2025; Oklahoma is not among the ten states with the most births.
| State | Births 2025 | Rank, boys | vs. national |
|---|---|---|---|
| Texas | 37 | #922 | 1.2× |
| Oklahoma | 14 | #341 | 3.0× |
| Ohio | 13 | #694 | 1.0× |
| California | 9 | #1,760 | 0.2× |
| Missouri | 8 | #689 | 1.6× |
| Louisiana | 8 | #564 | 1.2× |
| Arkansas | 8 | #423 | 1.2× |
| Iowa | 7 | #471 | 1.3× |
| Georgia | 7 | #1,169 | 0.4× |
| Alabama | 7 | #655 | 0.6× |
Where Kooper is more common than its national share predicts
Relative to its national share, Kooper is most over-represented in Oklahoma: since 1990 it was given 3.0 times as often there as its national share each year would predict.
States: SSA state file, 1910-2025, published May 8, 2026; births count girls and boys together, and the rank is among boys’ names in the state in 2025. The file leaves out any state and year with fewer than 5 babies of the name, so small states are undercounted; each ratio compares the state’s births of Kooper with the births its national share predicts year by year, for states with at least 100 births of the name.
How common is the spelling Kooper?
Kooper is a less common spelling of Cooper: SSA has recorded 4,392 Kooper and 126,484 Cooper since 1880.
Of these 5 names spelled alike, given to 131,725 babies since 1880, Kooper is the second most given (3.3% of them). In 2025 it was given to 246 of their 7,953 babies (3.1%), again the second most given.
Spelled alike: names in the SSA national file with the same pattern of letters and sounds and at most two letters apart, and Wiktionary’s listed forms; births since 1880 and in 2025, and each name’s peak year, from the SSA national file, published May 8, 2026. Some are separate names, not spellings of one.
Names that rose and fell in the same decades as Kooper
Names whose births rose and fell across the same decades, measured on each decade’s share of births.
Similar histories: each decade’s share of births, from the SSA national file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
More about Kooper and names like it
- Compare Kooper and CooperBirths, ranks, peak and the living estimate side by side.
- The most given names of the 2020sKooper peaked in 2022.
- Texas’s most given namesThe state where SSA recorded the most babies named Kooper since 1910.
- The top names of 2022The year the most babies were named Kooper.
- The names of Generation AlphaMost people named Kooper alive today were born 2013-2025.
- Names starting with KMost given first.