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NameAlmanac

Isaac

Boys’ name Recorded 1880-2025

Isaac was given to 5,953 boys in 2025, #47 among boys’ names; 332,292 Americans have been recorded with it since 1880 (Social Security Administration, published May 2026).

An estimated 299,000 Americans named Isaac and born in the U.S. are alive in 2026 (90% of everyone recorded); the median is 18 years old and half are between 10 and 27.

Babies named Isaac each year, first recorded in 1880
Isaac, 1880-2025; highest in 2007.2.5k5k7.5k10k13k188019001920194019601980200020252007 peak: 10,287
Isaac, 1880-2025; highest in 2007.2.5k5k7.5k10k13k188019001920194019601980200020252007 peak: 10,287
Isaac, 1880-2025; highest in 2007.2.5k5k7.5k10k13k18801905193019551980200520252007 peak: 10,287
Isaac, 1880-2025; highest in 2007.2.5k5k7.5k10k13k18801930198020252007 peak: 10,287

Girls and boys together; gaps are years SSA did not record (fewer than 5 births).

Isaac or IssacNames of the 2000sNames in California

Births of Isaac by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.

What does Isaac mean?

Wiktionary, English section

Isaac is “a male given name from Hebrew.” Its etymology gives the sense “he laughs, he will laugh” (literally).

From Middle English Ysaac, from Latin Isaac, from Ancient Greek Ἰσαάκ (Isaák), from Hebrew יצחק (Yiṣḥāq, literally “he laughs, he will laugh”). Explained in Genesis as referring to his mother Sarah’s laughing when she was told she would have a son at her old age. The verb is masculine, however, perhaps due to its use as a boy’s name.

/ˈaɪzək/

From Wiktionary, the free dictionary, entry Isaac (English), CC BY‑SA 4.0. Quoted from the entry; text after a cross-reference to another sense is left out.

Meaning: Wiktionary, English section, as of Sep 25, 2026 (CC BY‑SA 4.0).

How popular is Isaac?

#47 among boys’ names, 2025

Isaac fell from #31 in 2015 to #47 in 2025 among boys’ names; its share of boys born fell from 5.2 to 3.5 per 1,000.

10,287 babies in 2007, the peak

Isaac peaked in 2007, when 10,287 babies were given it (10,274 boys, #41 among boys’ names). The 5,963 births of 2025 (girls and boys) are 58% of that peak.

Isaac by year
YearBirthsRankPer 1,000 boys
20255,953#473.5
20246,529#413.8
20236,621#423.9
20226,752#413.9
20216,987#404.0
20207,155#394.1
20198,231#344.6
20188,503#344.7
20178,894#324.8
20169,782#315.2
Every recorded year (146)
YearBirthsRankPer 1,000 boys
20159,988#315.2
20149,999#315.2
201310,134#285.4
201210,065#305.3
20119,607#355.1
20109,371#394.9
20099,569#404.8
200810,030#374.9
200710,274#415.0
20069,685#484.7
20059,127#494.6
20049,181#464.6
20038,944#484.5
20028,312#484.3
20018,200#474.2
20007,439#533.8
19996,407#643.3
19985,859#653.1
19975,146#732.7
19964,566#862.4
19953,881#982.0
19943,496#1031.8
19933,214#1101.6
19922,773#1241.4
19912,500#1301.2
19902,429#1321.2
19892,210#1371.1
19881,964#1431.0
19871,828#1511.0
19861,736#1550.94
19851,673#1650.91
19841,692#1600.94
19831,796#1511.0
19821,841#1511.0
19811,836#1501.0
19801,798#1501.0
19791,734#1511.0
19781,451#1670.88
19771,264#1840.77
19761,093#2020.70
19751,014#2130.65
1974941#2240.60
1973896#2350.57
1972806#2510.50
1971712#2880.40
1970569#3330.31
1969514#3490.29
1968427#3750.25
1967395#3770.23
1966430#3640.24
1965428#3750.23
1964496#3520.25
1963472#3590.23
1962482#3630.23
1961494#3570.23
1960467#3650.22
1959513#3420.24
1958540#3320.25
1957521#3340.24
1956552#3170.26
1955545#3150.26
1954585#2950.29
1953548#3010.28
1952564#2940.29
1951554#2920.29
1950557#2820.31
1949599#2700.34
1948533#2980.30
1947599#2800.33
1946514#2850.32
1945460#2810.34
1944491#2690.36
1943481#2790.34
1942450#2830.33
1941451#2650.37
1940486#2460.42
1939465#2480.42
1938460#2530.41
1937447#2550.42
1936423#2610.41
1935476#2410.46
1934481#2370.47
1933480#2370.48
1932492#2400.47
1931443#2560.43
1930548#2310.50
1929585#2180.54
1928534#2410.48
1927693#2030.61
1926586#2290.53
1925678#2060.61
1924704#1990.62
1923698#1970.64
1922720#1900.66
1921648#2080.59
1920706#1910.66
1919737#1780.75
1918658#1940.65
1917622#1920.67
1916629#1860.71
1915568#1960.67
1914496#1770.76
1913398#1720.78
1912359#1620.83
1911233#1431.0
1910252#1301.3
1909209#1281.3
1908162#1451.0
1907178#1341.2
1906163#1281.2
1905147#1451.1
1904167#1261.3
1903138#1381.2
1902143#1351.2
1901133#1251.2
1900198#1161.3
1899139#1191.3
1898156#1171.3
1897175#1011.6
1896191#1001.6
1895172#1071.5
1894170#1051.5
1893182#971.6
1892203#941.7
1891160#1011.6
1890187#921.7
1889188#911.7
1888221#851.8
1887194#841.9
1886224#802.0
1885204#791.9
1884243#752.1
1883227#702.2
1882278#652.4
1881258#642.6
1880274#622.5

Download Isaac’s births by year (CSV)

Ranks and shares: boys’ names in each year’s SSA file; share of all boys SSA recorded that year.

Is Isaac a boy’s or a girl’s name?

Isaac has been given almost only to boys: 784 girls in 146 years of records.

Girls and boys named Isaac: the SSA national file counts each sex separately.

How many people are named Isaac, and how old are they?

299,000 alive in 2026, estimated

That is 90% of the 332,292 Americans ever recorded as Isaac. The median Isaac alive today is 18 years old; half are between 10 and 27.

The 2020 Census counted 242,217 people named Isaac (471 women and girls, 241,746 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 265,476 born in the U.S. The Census count is 9% below that prediction.

Alive today, by age

100-10911
90-99324
80-891,560
70-793,390
60-693,710
50-596,530
40-4915,600
30-3927,700
20-2976,800
10-19 (median)97,900
0-965,200

Alive today, by generation

By generation
GenerationBornAlive
Silent Generation1928-19451,640
Baby Boomers1946-19646,680
Generation X1965-198013,100
Millennials1981-199637,800
Generation Z1997-2012135,000
Generation Alpha2013-2025105,000

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 Isaac born?

The states with the most babies named Isaac are California, Texas and New York, with 31% of its births recorded by state in 2025.

States with the most births: girls and boys together; rank among boys’ names in the state in 2025
StateBirths 2025Rank, boysvs. national
California766#381.3×
Texas668#461.1×
New York400#300.8×
Florida382#450.8×
Pennsylvania200#550.7×
North Carolina198#490.9×
Illinois196#490.8×
Georgia190#450.8×
Ohio184#560.8×
New Jersey181#470.6×

Where Isaac is more common than its national share predicts

Relative to its national share, Isaac is most over-represented in New Mexico: since 1910 it was given 1.7 times as often there as its national share each year would predict.

New Mexico1.67×
California1.30×
Utah1.30×
Hawaii1.21×
South Carolina1.20×
Oregon1.19×
Arizona1.17×
Texas1.15×

Bars start at 1× (as often as the national share predicts).

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 Isaac with the births its national share predicts year by year, for states with at least 100 births of the name.

Names spelled alike

Of these 8 names spelled alike, given to 368,096 babies since 1880, Isaac is the most given (90% of them). In 2025 it was given to 5,963 of their 6,344 babies (94%), again the most given.

Isaac and the names spelled alike
NameSince 1880Births 2025Peak year
Isaac332,2925,9632007
Issac24,5712582008
Isaak4,271482009
Isac3,203222006
Isacc1,962102003
Isak1,107382004
Issak49552008
Isiac195under 52001

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 Isaac

Names whose births rose and fell across the same decades, measured on each decade’s share of births.

NameRecorded1880-2025
Pierce20,634
Issac24,571
Jonas28,588
Israel72,874
Julian268,291
Preston123,757

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 Isaac and names like it

  1. Compare Isaac and IssacBirths, ranks, peak and the living estimate side by side.
  2. The most given names of the 2000sIsaac peaked in 2007.
  3. California’s most given namesThe state where SSA recorded the most babies named Isaac since 1910.
  4. Hebrew namesWiktionary’s origin for Isaac: every such name, by how often it is given.
  5. The top names of 2007The year the most babies were named Isaac.
  6. The names of Generation ZMost people named Isaac alive today were born 1997-2012.
  7. Names starting with IMost given first.

Compare Isaac with another name