Lonn
Lonn was last recorded in 1980, when 9 babies were given it; 391 Americans have been recorded with it between 1940 and 1980 (Social Security Administration, published May 2026).
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Lonn by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
How popular is Lonn?
Unranked in 2025
Its last boys’ rank on record is #4,364, in 1980; SSA lists a name only in years with 5 or more births.
19 babies in 1968, the peak
Lonn peaked in 1968, when 19 boys were given it, #1,874 among boys’ names. It was not recorded in 2025.
| Year | Births | Rank | Per million boys |
|---|---|---|---|
| 1980 | 9 | #4,364 | 5.0 |
| 1978 | 7 | #4,844 | 4.3 |
| 1977 | 5 | #6,440 | 3.0 |
| 1976 | 8 | #4,249 | 5.1 |
| 1975 | 12 | #3,168 | 7.7 |
| 1974 | 10 | #3,468 | 6.4 |
| 1973 | 8 | #3,922 | 5.1 |
| 1972 | 14 | #2,611 | 8.6 |
| 1971 | 11 | #3,080 | 6.2 |
| 1970 | 15 | #2,460 | 8.1 |
Every recorded year (34)
| Year | Births | Rank | Per million boys |
|---|---|---|---|
| 1969 | 11 | #2,791 | 6.2 |
| 1968 | 19 | #1,874 | 10.9 |
| 1967 | 9 | #2,897 | 5.2 |
| 1966 | 16 | #2,014 | 9.0 |
| 1965 | 14 | #2,228 | 7.5 |
| 1964 | 11 | #2,612 | 5.5 |
| 1963 | 16 | #2,086 | 7.9 |
| 1962 | 7 | #3,512 | 3.4 |
| 1961 | 15 | #2,197 | 7.1 |
| 1960 | 16 | #2,091 | 7.5 |
| 1959 | 15 | #2,166 | 7.0 |
| 1958 | 13 | #2,322 | 6.1 |
| 1957 | 14 | #2,243 | 6.5 |
| 1956 | 15 | #2,137 | 7.1 |
| 1955 | 13 | #2,271 | 6.3 |
| 1954 | 9 | #2,869 | 4.4 |
| 1953 | 15 | #2,075 | 7.6 |
| 1951 | 6 | #3,577 | 3.2 |
| 1950 | 11 | #2,384 | 6.1 |
| 1949 | 13 | #2,183 | 7.3 |
| 1948 | 12 | #2,282 | 6.8 |
| 1947 | 10 | #2,595 | 5.5 |
| 1946 | 7 | #3,071 | 4.3 |
| 1940 | 5 | #3,742 | 4.3 |
Ranks and shares: boys’ names in each year’s SSA file; share of all boys SSA recorded that year.
Is Lonn a boy’s or a girl’s name?
Lonn has been recorded only for boys: SSA lists no girls with the name in 34 years of records (it lists a name only in years with 5 or more babies of a sex).
Girls and boys named Lonn: the SSA national file counts each sex separately.
How many people are named Lonn, and how old are they?
An estimated 295 Americans named Lonn and born in the U.S. are alive in 2026 (75% of everyone recorded); the median is 62 years old and half are between 55 and 69. An estimate from SSA’s births and life tables, not a count.
The 2020 Census counted 402 people named Lonn (17 women and girls, 385 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 321 born in the U.S. The Census count is 25% above that prediction. Possible reasons: the Census records the name people give, which for many is the short form Lonn rather than the name on their birth record, and it counts people born abroad, whom SSA’s files leave out.
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).
Names spelled alike
Of these 3 names spelled alike, given to 10,325 babies since 1880, Lonn is the second most given (3.8% of them). In 2025 none of their 24 babies recorded by SSA was a Lonn (SSA lists a name only with 5 or more babies of one sex).
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 Lonn
Names whose births rose and fell across the same decades, measured on each decade’s share of births.
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 Lonn and names like it
- Compare Lonn and LonBirths, ranks, peak and the living estimate side by side.
- The most given names of the 1960sLonn peaked in 1968.
- Wisconsin’s most given namesThe state where SSA recorded the most babies named Lonn since 1910.
- The top names of 1968The year the most babies were named Lonn.
- The names of the Baby BoomersMost people named Lonn alive today were born 1946-1964.
- Names starting with LMost given first.