2000
#137,816
National surname rank
Recorded bearers 112
First available Census row
Per 100,000 0.04
Very Rare Last name
Dekoninck
A surname of Dutch origin meaning "the king" or "the ruler".
According to the 2020 US Census Bureau surname tables, roughly 134 Americans carry the last name Dekoninck. That puts it at #144,270 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,557,868 residents).
This page is the full Name Census profile for the Dekoninck surname. You will find the Census Bureau frequency data, a multi-census history view, an ancestry and ethnicity breakdown based on self-reported demographics, the name's meaning and origin where available, and answers to the most common questions people ask about this surname.
Bearers in the US
134
1 in 2,557,868
Census rank
#144,270
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
117
very rare in the US
Popularity narrative
The Census Bureau recorded 117 bearers of the surname Dekoninck in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 144270th position in the national surname ranking.
Among Census respondents with the surname Dekoninck, the largest self-reported group is White at 94.0%. The next largest groups are Asian/Pacific Islander (3.4%) and Two or More Races (2.6%).
Origin
Meaning and origin of Dekoninck
The surname DEKONINCK is of Dutch and Flemish origin, with the earliest records dating back to the 16th century in the Low Countries region, which includes present-day Belgium and the Netherlands. The name is derived from the Dutch phrase "de Koninck," which translates to "the King" or "the Monarch."
DEKONINCK is believed to have originated as a descriptive surname, likely referring to someone who held a position of authority or served in a royal court. It may have been given as a nickname or occupational name to distinguish individuals with connections to the monarch or royal household.
One of the earliest known bearers of the name was Jan de Koninck, a Flemish painter born in Antwerp, Belgium, in 1609. He was a prominent figure in the Flemish Baroque period and is renowned for his still-life paintings and portraits.
Another notable figure with the surname DEKONINCK was Philips de Koninck, a Dutch landscape painter born in Amsterdam in 1619. He was a contemporary of Rembrandt and is celebrated for his atmospheric and naturalistic depictions of Dutch landscapes.
In the 18th century, the name appeared in various historical records across the Low Countries. One example is Pieter de Koninck, a Dutch architect and engineer born in Leiden in 1704, who was responsible for the design and construction of several notable buildings in the Netherlands.
During the 19th century, the surname DEKONINCK was found in various regions of Belgium and the Netherlands. One notable bearer was Marie de Koninck, a Belgian painter born in Antwerp in 1848, known for her portraits and genre scenes depicting everyday life.
Another significant figure with the surname DEKONINCK was Lucien de Koninck, a Belgian philosopher and professor born in Antwerp in 1909. He was a prominent figure in the field of existential phenomenology and made significant contributions to the study of human consciousness and existence.
Throughout its history, the surname DEKONINCK has been associated with individuals from various walks of life, including artists, architects, philosophers, and those connected to the royal court or monarchy. Its origins as a descriptive surname reflecting a position of authority or association with the monarch have contributed to its enduring legacy and presence across the Low Countries region.
Demographics
Ancestry and ethnicity for Dekoninck
Among Census respondents with the surname Dekoninck, the largest self-reported group is White at 94.0%. The next largest groups are Asian/Pacific Islander (3.4%) and Two or More Races (2.6%).
The bar chart below shows how Dekoninck bearers described their own race and ethnicity on the 2020 Census form. The Census Bureau groups responses into six broad categories: White, Black or African American, Hispanic or Latino, Asian and Pacific Islander, American Indian and Alaska Native, and Two or More Races. When a category has too few respondents for a given surname, the Bureau suppresses the figure to protect individual privacy, which is why some names show fewer than six slices.
Percentages are shown for every Census year so the breakdown stays comparable over time. When the source file also includes raw headcounts, Name Census shows those alongside the percentages in the legend.
Keep in mind that these are self-reported numbers. A person's surname does not determine their race or ethnicity, and the distribution you see here reflects the specific population who happened to carry the Dekoninck surname at the time of the 2020 Census, not any inherent property of the name itself.
- White94.0% · 110
- Asian and Pacific Islander3.4% · 4
- Two or more races2.6% · 3
Timeline
Historical Census data for Dekoninck
Dekoninck appears in 3 published Census surname files: 2000, 2010, 2020. The cards below show how the name's rank and bearer count changed across each release.
2010
#144,141
National surname rank
Recorded bearers 115
+3 bearers (+2.7%)
Per 100,000 0.04
Rank movement Down 6,325 places
2020
#144,270
National surname rank
Recorded bearers 117
+2 bearers (+1.7%)
Per 100,000 0.04
Rank movement Down 129 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #137,816 | 112 | 0.04 | First available Census row | First available Census row |
| 2010 | #144,141 | 115 | 0.04 | +3 bearers (+2.7%) | Down 6,325 places |
| 2020 | #144,270 | 117 | 0.04 | +2 bearers (+1.7%) | Down 129 places |
For 2020, the Census Bureau published race and Hispanic-origin columns as counts rather than percentages. Name Census converts those counts back into shares so the ancestry section stays comparable with the older surname files.
Year on year
2010 vs 2020 Census
How has the Dekoninck surname changed between Census years? The chart shows bearer count side by side, and the table compares rank, count, and frequency.
Census year comparison
20102020
| Metric | 2010 | 2020 | Change |
|---|---|---|---|
| Rank | #144,141 | #144,270 | -0.1% |
| Count | 115 | 117 | 1.7% |
| Per 100K | 0.04 | 0.04 | -2.1% |
Between the 2010 and 2020 Census, the number of Dekoninck bearers went from 115 to 117 (+1.7% change). The surname moved down 129 positions in the national ranking, going from #144,141 to #144,270.
FAQ
Dekoninck surname: questions and answers
How many people in the U.S. have the surname Dekoninck?
Name Census estimates that about 134 living Americans carry the surname Dekoninck. Using the current population baseline, that works out to roughly 1 in 2,557,868 residents.
How common is Dekoninck?
Dekoninck ranks #144,270 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.04 per 100,000 residents, which is about 0 people out of every 100,000.
How many people with this surname were counted in the Census?
The raw 2020 Census file counted 117 people with the surname Dekoninck. That is different from the site's living-bearer estimate (134), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.04 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.04 per 100,000 means that if you picked a random group of 100,000 U.S. residents, you would expect about 0 of them to have the surname Dekoninck.
Has Dekoninck become more or less common over time?
Between 2010 and 2020, the surname Dekoninck went from 115 recorded bearers to 117. That is an increase of 2 (+1.7%). In the national ranking it fell from #144,141 to #144,270.
What does the Census say about the background of Dekoninck?
Among Census respondents with the surname Dekoninck, the largest self-reported group is White at 94.0%. The next largest groups are Asian/Pacific Islander (3.4%) and Two or More Races (2.6%). These figures come from the 2020 Census Bureau surname tables, based on how respondents described their own race and ethnicity.
Which group reports this surname most often?
White is the largest self-reported group for the surname Dekoninck in the 2020 Census, accounting for 94.0% (110 people in the source table).
What is the full ancestry breakdown?
Dekoninck appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (94.0%), Asian/Pacific Islander (3.4%), Two or More Races (2.6%). For 2020, the source file also published raw headcounts for each group, which is why this page can show both percentages and counts in the ancestry section.
Is this page using the latest Census data?
Yes. This page is using the latest surname file currently loaded on Name Census, which is 2020. The historical section above also keeps any older Census surname entries we have for Dekoninck (2000, 2010, 2020).
Does the Census include every surname?
No. The Census Bureau only publishes surnames that appeared at least 100 times in a given decennial Census. That means very rare surnames are excluded entirely, and a surname can appear in one Census release but disappear from a later one if it falls below the reporting threshold.
Why don't the ancestry percentages always add up to exactly 100%?
There are two main reasons: rounding and suppression. The Census Bureau rounds published values, and it may suppress very small cells to protect privacy. For 2020, the Bureau also published raw group counts rather than direct percentages, so Name Census converts those counts back into shares for comparability across census years.
What does Dekoninck mean?
A surname of Dutch origin meaning "the king" or "the ruler". The fuller origin note on this page goes into more detail.
Where does the surname data come from?
All surname statistics on Name Census are drawn from the US Census Bureau's decennial surname frequency tables. These files list every surname that appeared 100 or more times in the 2020 Census, along with a count, a per-100,000 rate, and a self-reported demographic breakdown. You can read the full explanation on our methodology page.
How does Name Census estimate living bearers?
For surnames, Name Census does not age cohorts the way it does for first names. Instead, it takes the Census Bureau's published frequency for Dekoninck (0.04 per 100,000) and applies that rate to the current U.S. resident population to estimate how many living Americans have the surname today.
How many Americans have the surname Dekoninck?
For a quick modern estimate, our sister site HowManyOfMe.org answers that in one glance, with the living-bearer count front and centre.