Lonza
Lonza was last recorded in 1971, when 6 babies were given it; 360 Americans have been recorded with it between 1900 and 1971 (Social Security Administration, published May 2026).
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Lonza by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
How popular is Lonza?
Unranked in 2025
Its last boys’ rank on record is #4,714, in 1971; SSA lists a name only in years with 5 or more births.
14 babies in 1916, the peak
Lonza peaked in 1916, when 14 boys were given it, #2,105 among boys’ names. It was not recorded in 2025.
| Year | Births | Rank | Per million boys |
|---|---|---|---|
| 1971 | 6 | #4,714 | 3.4 |
| 1967 | 5 | #4,322 | 2.9 |
| 1959 | 6 | #3,846 | 2.8 |
| 1958 | 5 | #4,285 | 2.4 |
| 1956 | 7 | #3,403 | 3.3 |
| 1955 | 6 | #3,730 | 2.9 |
| 1954 | 6 | #3,671 | 2.9 |
| 1953 | 10 | #2,644 | 5.1 |
| 1952 | 5 | #4,059 | 2.6 |
| 1950 | 9 | #2,698 | 5.0 |
Every recorded year (44)
| Year | Births | Rank | Per million boys |
|---|---|---|---|
| 1949 | 7 | #3,184 | 3.9 |
| 1948 | 9 | #2,711 | 5.1 |
| 1947 | 10 | #2,597 | 5.5 |
| 1944 | 5 | #3,718 | 3.7 |
| 1943 | 7 | #3,118 | 4.9 |
| 1942 | 9 | #2,631 | 6.5 |
| 1941 | 6 | #3,355 | 4.9 |
| 1940 | 9 | #2,600 | 7.8 |
| 1939 | 6 | #3,331 | 5.4 |
| 1937 | 5 | #3,830 | 4.7 |
| 1936 | 14 | #1,935 | 13.5 |
| 1935 | 6 | #3,491 | 5.8 |
| 1934 | 8 | #2,864 | 7.7 |
| 1933 | 10 | #2,466 | 10.1 |
| 1932 | 6 | #3,609 | 5.7 |
| 1931 | 9 | #2,789 | 8.7 |
| 1930 | 12 | #2,390 | 10.9 |
| 1929 | 5 | #4,317 | 4.6 |
| 1928 | 8 | #3,254 | 7.2 |
| 1927 | 9 | #3,055 | 8.0 |
| 1926 | 9 | #3,037 | 8.1 |
| 1925 | 13 | #2,380 | 11.6 |
| 1924 | 8 | #3,398 | 7.1 |
| 1923 | 12 | #2,541 | 10.9 |
| 1922 | 11 | #2,734 | 10.1 |
| 1921 | 12 | #2,573 | 10.9 |
| 1920 | 13 | #2,405 | 12.2 |
| 1919 | 6 | #3,987 | 6.1 |
| 1918 | 7 | #3,570 | 6.9 |
| 1917 | 11 | #2,504 | 11.9 |
| 1916 | 14 | #2,105 | 15.7 |
| 1915 | 8 | #2,962 | 9.4 |
| 1910 | 5 | #1,748 | 25.7 |
| 1900 | 6 | #1,254 | 39.9 |
Ranks and shares: boys’ names in each year’s SSA file; share of all boys SSA recorded that year.
Is Lonza a boy’s or a girl’s name?
Lonza has been recorded only for boys: SSA lists no girls with the name in 44 years of records (it lists a name only in years with 5 or more babies of a sex).
Girls and boys named Lonza: the SSA national file counts each sex separately.
How many people are named Lonza, and how old are they?
An estimated 80 Americans named Lonza and born in the U.S. are alive in 2026, too few to state an age range. An estimate from SSA’s births and life tables, not a count.
The 2020 Census counted 138 people named Lonza (14 women and girls, 124 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 110 born in the U.S. The Census count is 25% above that prediction. Possible reasons: the Census counts people born abroad, whom SSA’s files leave out, and it records the name people give, which SSA may have recorded under another spelling or as part of a compound name.
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 4 names spelled alike, given to 5,178 babies since 1880, Lonza is the third most given (7.0% of them). In 2025 none of their 25 babies recorded by SSA was a Lonza (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 Lonza
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 Lonza and names like it
- Compare Lonza and LonzoBirths, ranks, peak and the living estimate side by side.
- The most given names of the 1910sLonza peaked in 1916.
- Alabama’s most given namesThe state where SSA recorded the most babies named Lonza since 1910.
- The top names of 1916The year the most babies were named Lonza.
- Names starting with LMost given first.