The Knapp surname
In the 2010 U.S. Census, 41,771 people carried this name — #825 among all U.S. surnames, about 1 in every 7,060 people counted. That is up 1% from 41,267 in 2000.
Where the name comes from
The origin of the Knapp surname
A male surname from German.
From Wiktionary, the free dictionary (en.wiktionary.org) — entry «Knapp» (Czech), by Wiktionary contributors · licensed CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0) · excerpt, lightly adapted.
In Switzerland’s population statistics
306 people named Knapp live in Switzerland.
They live in 16 of Switzerland’s 26 cantons, most of all in Zurich.
Where it concentrates, on the mapWhere they live today
Swiss Federal Statistical Office (FSO), «Surnames of the permanent resident population by canton», 2025, opendata.swiss/en/dataset/nachnamen-der-standigen-wohnbevolkerung-nach-kanton3 · names with fewer than 3 bearers in a canton are not published.
In France’s civil register
France’s register of deaths holds 269 people named Knapp.
25 of them were born outside France. Those born in France came from 22 départements, most often Bas-Rhin.
Where it concentrates, on the mapWhere they were born
Fichier des personnes décédées, INSEE — Licence Ouverte 2.0 · deaths recorded in France since 1970, by place of birth.
In Poland’s population register
240 people named Knapp have a registered home in Poland.
Of the 314 in Poland’s national register, these are the ones with a permanent address on file. They live in 12 of Poland’s 16 voivodeships, most of all in Greater Poland.
Where it concentrates, on the mapWhere they live today
PESEL register, Ministry of Digital Affairs of Poland (dane.gov.pl) — CC0 · living people by voivodeship of permanent residence, 20 January 2026.
In Argentina’s national register
At least 33 people named Knapp live in Argentina.
RENAPER only publishes a name in a province when more than ten people there share it, so the real number is higher. Most of them live in Buenos Aires Province.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where they live today
RENAPER (National Registry of Persons, Argentina), surnames of residents by province, December 2021 — CC BY 4.0.
In the Nordic population registers
245 people named Knapp are counted in Sweden and Finland.
Sweden’s figure is from 31 December 2022, the last count Statistics Sweden published. Finland counts its citizens, at home or abroad.
Counted, by country
Own calculations based on data from Statistics Sweden (SCB), surnames with at least two bearers, 31 December 2022 — CC BY 4.0 (names with 20 or more bearers shown) · Digital and Population Data Services Agency (DVV), Finland, surname statistics, August 2026 — CC BY 4.0.
In print
Knapp in American newspapers,
1907–1910.
Chronicling America, Library of Congress — digitised newspapers in the public domain · 398,107 pages in all carry the name.
Who carried it
People named Knapp,
with a public archive behind them.
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Samuel L. Knapp d. 1877 · actor
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Harold A. Knapp d. 1989 · mathematician
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Johann Knapp d. 1721 · musician
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Winifred Knapp d. 1861
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Mary Knapp d. 1832
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Catherine Tyrell Knapp d. 1923
Wikidata (CC0) · 10 lives in all are documented under this name.
Nearby in the index
Surnames next to Knapp.
- Kmieciak 266 · U.S. census
- Kmiecik 786 · U.S. census
- Knab 976 · U.S. census
- Knaebel 253 · U.S. census
- Knaff 317 · U.S. census
- Knapik 1,399 · U.S. census
- Knaub 1,570 · U.S. census
- Knauer 2,171 · U.S. census
- Knaus 2,047 · U.S. census
- Knauss 2,212 · U.S. census
- Knecht 5,452 · U.S. census
- Kneib 249 · U.S. census
When the index is not enough
This page says where Knapp is.
A volume says what happened to it.
Every page in the index is free and stays free. The Heritage Volume is the long form: the full paper trail, the arms, the crossing — bound, and yours.