Girls' name · since 1881

Jo

Since 1881, U.S. Social Security records show 179,057 babies named Jo, peaking in 1954. See the year-by-year trend, decade totals, and state rankings below, sourced from federal birth data.

#4210
among girls today
179,057
born since 1881
1950s
peak decade
76%
more common than other girls

Jo currently ranks #4210 among girls' names in America, with 179,057 babies recorded since 1881.

According to the U.S. Social Security Administration, Jo has been recorded 179,057 times among girls since 1881, currently ranked #4210 nationally and more common than 76% of girls, with its heaviest use in the 1950s. This profile covers year-by-year birth trends, decade totals, and state-level distribution, all derived directly from SSA birth-registration files spanning 1881 to 2025.

  • #4210 among girls today
  • 179,057 born since 1881
  • 1950s peak decade
  • 76% more common than other girls

Data updated Jun 2026

The verdict

Jo is currently the #4210 girls' name in America, more common than 76% of girls - 179,057 born since 1881, peaking in the 1950s.

#4210
among girls today
179,057
born since 1881
1950s
peak decade
76%
more common than other girls

Jo vs. every other girls name in current SSA rankings

0%100%Median name50%76.2%
Jo vs. every other girls name in current SSA rankings
#4210
of 17,726 girls in use

More common than 76% of names given to girls today.

1950s
Peak decade

36% of everyone ever named Jo was born in this single decade.

1954
Single peak year

8,052 babies were named Jo in 1954 - its busiest year on record.

How Jo compares

179,057 Top 1% higher than 99% of 17,726 names currently given to girls

Based on all-time total births among currently-ranked girls names. Names with fewer occurrences are grouped into wider buckets on the right.

Source U.S. Social Security Administration, national baby name data

How the numbers stack up

Jo's all-time total is 469x the median girls name, and Olivia still leads by a wide margin.

Metric Jo Median girls name (Emerly) #1 girls name (Olivia)
All-time total births 179,057 382 567,345
Peak-year births 8,052 48 19,840

Jo's usage pattern, beyond the headline number

Jo splits its recorded history at 1954: 37% of all births land in the more recent half, 63% in the earlier half, leaning more toward its earlier era than today's. The single quietest year was 1881 (5 births) -- compare that against the 1954 peak of 8,052 for a sense of just how much the name's popularity has swung.

Jo at a glance

Outside the top 1,000

Total births

179,057

Since 1881

145 years of records

Peak year

1954

8,052 births that year

Strongest decade: 1950s

Current rank

#4,210

Among girls

As of 2025

Active since

1881

Recorded for 145 years

Last year on file: 2025

Jo popularity over time - girls

Annual U.S. births registered with the Social Security Administration · 1881–2025

Outside the top 1,000
Peak year (1954)
8,052
Annual births at peak, across 145 years of records
-2,00002,0004,0006,0008,00010,000 188119001918193619541972199020082025 36

Jo popularity over time - boys

1,854 total births recorded since 1911 (Jo as boys' name)

Unisex variant - 1,854 births
01020304050 191119261940195419681982199620122025 8

Jo by decade

Total births in each ten-year window, peak vs trough at a glance

1950s was Jo's strongest decade.

63,939 babies received the name during that ten-year window, about 36% of all-time use.

Jo births by decade

Total births in each ten-year window

births

What this shows Peak: 1950s at 63,939 births (36% of all-time use).

Source U.S. Social Security Administration · Baby Names As of June 2026

How Jo compares to similarly-sized names

Years in SSA records vs. share of all-time use concentrated in the single peak year, among 15 girls names closest to Jo's total volume

Jo vs 15 similarly-sized girls names

Jo vs 15 similarly-sized girls names Scatter plot of 16 data points. 0%2%4%6%8% 406080100120140160 New & already peakedOld name, single-era peakNew & still diversifyingLong history, steady all along Years in SSA records % of total births in the single peak year Jo
Jo vs 15 similarly-sized girls names

Jo by state

Where Jo concentrates geographically, total births since 1881

Geographically diffuse
Top 8 states by recorded births for the name Jo
Rank State Visual share Births Share of total
#1 Texas
19,389 10.8%
#2 New York
12,229 6.8%
#3 California
9,497 5.3%
#4 Ohio
8,336 4.7%
#5 Illinois
7,819 4.4%
#6 Pennsylvania
7,267 4.1%
#7 Tennessee
6,165 3.4%
#8 North Carolina
6,152 3.4%
Texas share of Jo's total US births 10.8%
Even split

19,389 of 179,057 births nationwide. Compared to a flat distribution across 51 reporting states.

Jo appears in 51 states. Explore state details →

Frequently Asked Questions

How popular is the name Jo?
Since 1881, Social Security records show 179,057 babies named Jo. Today it holds rank #4210 among girls. Its busiest year on record was 1954, with 8,052 births.
When was Jo most popular?
Jo was most popular in the 1950s decade with 63,939 total births. The single peak year was 1954.
Where is Jo most popular?
The top states for the name Jo are Texas (19,389 births), New York (12,229 births), California (9,497 births).
How long has the name Jo been used?
Jo has been recorded in Social Security data since 1881, spanning 145 years of data through 2025.
What names are similar to Jo?
Names with a similar sound or spelling include Joyce, Joan, Josephine, Joanne, and 4 more. These share a common prefix and are also used for girls.

What to do with Jo's data

  • Jo's decade-level peak was the 1950s (63,939 total births); usage has since declined to 230 in the 2020s -- if you're weighing a "classic revival" angle, the trend line argues against it.
  • Texas records the most Jos (19,389 births) -- see the full state breakdown if geography matters to your decision. Texas names
  • Weighing it against an alternative? Put two names side by side. Compare names

Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.

Data Sources

Data as of June 2026. Source: U.S. Social Security Administration (SSA).

According to the Social Security Administration, this profile draws directly from the agency's public-use baby-name files (updated June 2026). See our methodology for the full extraction, aggregation, and privacy-suppression rules.

Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications, National Data, 1881–2025 (ssa.gov/oact/babynames).

State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).

Cite this page

NameAlmanac Editorial. "Jo: #4210 Girls' Name - 179,057 Births, Peak 1954." NameAlmanac. Accessed via https://namealmanac.com/name/jo. Licensed CC BY-SA 4.0.

Name Almanac is rendered directly from the Social Security Administration's public baby-name files, no number is typed in by an editor. This profile for Jo draws directly on SSA national and state-level files, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.