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Baby names in Idaho in the 1920s

In Idaho in the 1920s the most given names were Robert (2,283 boys) and Mary (1,758 girls), of 74,710 births recorded.

Babies SSA recorded in Idaho each year, the 1920s shaded
Idaho births by year and sex2k4k6k8k10k19101930195019701990201020251920-1929BoysGirls
Idaho births by year and sex2k4k6k8k10k19101930195019701990201020251920-1929BoysGirls
Idaho births by year and sex2k4k6k8k10k19101930195019701990201020251920-1929BoysGirls
Idaho births by year and sex2k4k6k8k10k19101950199020251920-1929BoysGirls

Births under names given to 5 or more babies of one sex in the state that year.

Idaho, 1920-1929: SSA state baby-name file, published May 8, 2026. SSA’s state data.

The top names in Idaho, 1920s

Girls, 1920-1929
#NameBirths
1Mary1,758
2Betty1,629
3Dorothy1,382
4Helen1,129
5Ruth917
6Margaret821
7Barbara722
8Lois649
9Marjorie639
10Donna605
11Virginia563
12Doris559
13Shirley558
14Norma549
15Alice480
16Jean440
17Maxine437
18June434
19Phyllis428
20Frances412
Boys, 1920-1929
#NameBirths
1Robert2,283
2William1,522
3John1,507
4James1,366
5Donald1,186
6Charles872
7Richard864
8Jack863
9George853
10Kenneth638
11Harold633
12Frank457
13Ralph430
14Thomas425
15David418
16Joseph390
17Wayne377
18Edward373
19Earl372
20Walter364

Births summed over 1920-1929, per sex.

The names most over-represented in Idaho in the 1920s

Each figure is the name’s births in the state in the decade against the births its national share, year by year, would predict (names with at least 100 births in the state).

Girls

Boys

Ratios: observed over predicted births, 1920-1929.

More about names in Idaho

  1. The 1920s across the U.S.The most given names of the decade nationally.
  2. Idaho: 2025 and every year since 1910The state’s top names now and its number ones by year.
  3. Idaho in the 1930sThe next decade in the state.
  4. The top names of 1920The first year of the decade, nationally.
  5. Every state’s most given namesEach state since 1910.
  6. Look up any nameIts rank, births since 1880 and the people alive with it.

Back to Idaho: 2025 and every year since 1910