Jacolby
#5,965 in 2025Boys' nameMeaning not yet documented
Jacolby has been given to 1,572 babies in the U.S. since 1981. In 2025 it ranked #5,965 of 13,926 boys’ names in use. Its peak year was 1992, with 81 recorded.
Babies named Jacolby, 2025
1 in 221,000
Jacolby over time, 1880–2025
Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.
How common is Jacolby?
Everything below is computed from the 2025 data — the most recent year available.
- Among all babies, 2025
- 1 in 221,000
- 15 of 3,315,165 births
- Among boys only
- 1 in 114,000
- <0.01% of boys
- Rank, 2025
- #5,965
- of 13,926 boys’ names in use
- Coin-flip room size
- 153,194 kids
- Even odds of a second one
Where Jacolby sits on the popularity scale
Chance at least one other child shares the name
If the other children were drawn at random from the 2025 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.
Put another way: gather 153,194 children born in 2025 and it's an even bet that one of them is another Jacolby. In a class of 30 the chance is Under 1%.
When Jacolbys were born
Half of everyone ever recorded as Jacolby was born before 2001 — so the typical Jacolby is around 24 today.
- Biggest decade
- 1990s
- 33.2% of all use
- Born in the last 25 years
- 51.8%
- A modern name
- Recorded since 1950
- 1,557
- People you could plausibly meet
1990s — 33.2% of all recorded uses (517).
Is Jacolby rising or falling?
Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.
- Rank vs 1 year ago
- +2,633
- Places climbed
- Rank vs 5 years ago
- −632
- Places dropped
- Rank vs 10 years ago
- −2,344
- Places dropped
- Births vs 10 years ago
- 0.50×
- Fewer babies than then
- Share of its own peak
- 18.5%
- Peak was 1992 (81)
- Years since peak
- 33
- Years
- Year-to-year steadiness
- Shifting
- 22.6% average annual change
Spellings of Jacolby
Jacolby is not the most common spelling — Jacob is, with 92.4% against Jacolby's 0.15%.
Grouped by closeness of spelling (up to two letter changes), same sex, with a floor on all-time use. It catches Sophia/Sofia and Aiden/Ayden, and misses spellings that sound alike but look different, like Sean and Shawn.
Where Jacolby is used
Across 1910–2025, Jacolby was most concentrated in Louisiana — about 1 in 12,500 boys, against 1 in 61,497 across all states with data. It was least common in Tennessee (1 in —).
Most concentrated
- 1Louisiana1 in 12,500
- 2Texas1 in 50,000
- 3Alabama1 in 100,000
- 4Georgia1 in 100,000
- 5Mississippi1 in 100,000
- 6Florida1 in —
- 7North Carolina1 in —
- 8Tennessee1 in —
Shading is the share of that state's recorded boys given this name, not the raw count — otherwise the map would just show which states are biggest. Unshaded states have no published records for this period. U.S. birth records suppress state-year counts below 5; state counts therefore don't add up to the national total. Every state links to its full rankings. Jacolby has too little recent state data to map, so this covers all years from 1910.
Jacolby by the numbers
The raw record for each sex the name is used for.
As a boy's name
Names similar to Jacolby
Matched on shared beginnings and endings, similar length, and comparable popularity.
Sibling names for Jacolby
Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.