Jo

Boy · recorded 1911–2025

  • #8,910in 2025
  • 1 in 213,509boys in 2025
  • 1931best year

Most popular in 1931.

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Meaning

We don’t have a verified meaning for Jo.

We only publish meanings we can cite to a source you could check yourself. Most sites will give you one anyway; the ones you find elsewhere are often copied between sites without verification.

Its story

Popularity since 1911

0173319111940196819972025

Hover over or drag across the chart to see any year.

Per million boys born. Years with fewer than five births are not in the record, so the line breaks rather than dropping to zero.
See the 107 recorded years as a table
Jo, per million boys born. Years absent from the table had fewer than five births.
YearPer million
191127
191318
19148
191512
191612
19178
191815
191911
192023
19218
192212
192313
192411
192513
192611
192715
192819
192925
193032
193133
193217
193325
193431
193533
193621
193727
193825
193919
194020
194126
194216
194322
194415
194524
194611
194716
194819
194917
195017
195113
195217
195312
195412
195516
195614
195717
19589
195913
196019
196110
196214
196310
196412
19656
19669
19677
19685
196912
197015
197112
197212
197310
19746
19758
19768
197711
197813
197910
198010
198111
198210
198311
19848
198511
19864
198710
19883
19896
19903
19914
19926
19935
19943
19953
19964
19973
19984
19995
20007
20014
20026
20036
20045
20063
20076
20083
20104
20113
20126
20143
20164
20175
20183
20205
20235
20246
20255

Where it’s loved

Most popular in these states

Jo isn’t concentrated in any one state. Either it’s spread evenly, or no state reaches the 25 births over three years needed before a rate means anything.

More like it

More like Jo

The numbers

Every figure

Births in 2025
8
Rank in 2025
#8,910
How rare
1 in 213,509 boys
Since 1911
1,854

Most popular in 1931, at 33 per million boys born.

There isn’t enough data for a ten-year trend: Jo doesn’t appear in both ends of that window.

Figures from the US Social Security Administration’s 2025 release. How these numbers are made.