2000
#142,819
National surname rank
Recorded bearers 107
First available Census row
Per 100,000 0.04
Very Rare Last name
Mckiddie
Of Scottish origin, a diminutive form of the name MacDonald meaning "son of the brown-haired lad".
According to the 2020 US Census Bureau surname tables, roughly 118 Americans carry the last name Mckiddie. That puts it at #154,182 in the national surname ranking, appearing at a frequency of 0.03 per 100,000 people (about 1 in 2,904,698 residents).
This page is the full Name Census profile for the Mckiddie 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.
For British records, Name Census UK has a British surname profile for Mckiddie with 1881 census detail, origin facts and modern UK distribution where available.
Bearers in the US
118
1 in 2,904,698
Census rank
#154,182
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
103
very rare in the US
Popularity narrative
The Census Bureau recorded 103 bearers of the surname Mckiddie in its 2020 decennial surname file. At a rate of 0.03 per 100,000 residents, it holds the 154182nd position in the national surname ranking.
Among Census respondents with the surname Mckiddie, the largest self-reported group is White at 85.4%. The next largest groups are American Indian/Alaska Native (7.8%) and Two or More Races (3.9%).
Origin
Meaning and origin of Mckiddie
The surname MCKIDDIE is of Scottish origin, originating from the Gaelic Mac Kiddie, a patronymic name meaning "son of the young lad." The name likely emerged in the late medieval period, around the 13th or 14th century, in the Scottish Highlands and Islands regions.
The prefix "Mac" is a common element in Scottish surnames, indicating a patronymic or "son of" origin. It is derived from the Gaelic word "mac," meaning "son." The second part, "Kiddie," is believed to have evolved from the Gaelic word "cuidiche," meaning "young lad" or "youth."
One of the earliest recorded instances of the name MCKIDDIE can be found in the Exchequer Rolls of Scotland from the late 15th century, where a John McKiddie is mentioned as a tenant farmer in Argyll. This suggests that the name was already established in Scotland by that time.
In the 16th century, the MCKIDDIE name appears in various Scottish records, such as the Register of the Privy Seal of Scotland, where a Robert McKiddie is mentioned in 1545. Another notable early bearer of the name was William McKiddie, a merchant and burgess of Aberdeen, who was recorded in the Burgh Records of Aberdeen in the late 16th century.
The MCKIDDIE name has also been associated with several notable individuals throughout history. One such figure was John McKiddie (1711-1786), a Scottish minister and theologian who served as the Moderator of the General Assembly of the Church of Scotland in 1771. Another notable bearer of the name was Robert McKiddie (1800-1882), a Scottish-born businessman and politician who served as a member of the Legislative Council of New South Wales, Australia.
In the 19th century, the MCKIDDIE name gained prominence in various parts of the world due to Scottish emigration. One notable bearer was James McKiddie (1826-1890), a Scottish-born farmer and businessman who settled in Ontario, Canada, and became a prominent citizen in the region.
Another significant figure was William McKiddie (1855-1935), a Scottish-born engineer and inventor who emigrated to the United States and was responsible for several innovations in the field of hydroelectric power generation.
During this period, the MCKIDDIE name also appeared in various records and publications, such as the Scottish Surname Listings compiled by George F. Black in the late 19th century, which included several variations of the name, such as McKiddy, McKitty, and McKittrick.
Demographics
Ancestry and ethnicity for Mckiddie
Among Census respondents with the surname Mckiddie, the largest self-reported group is White at 85.4%. The next largest groups are American Indian/Alaska Native (7.8%) and Two or More Races (3.9%).
The bar chart below shows how Mckiddie 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 Mckiddie surname at the time of the 2020 Census, not any inherent property of the name itself.
- White85.4% · 88
- American Indian and Alaska Native7.8% · 8
- Two or more races3.9% · 4
- Black or African American1.0% · 1
- Hispanic or Latino1.0% · 1
- Asian and Pacific Islander1.0% · 1
Timeline
Historical Census data for Mckiddie
Mckiddie 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
+8 bearers (+7.5%)
Per 100,000 0.04
Rank movement Down 1,322 places
2020
#154,182
National surname rank
Recorded bearers 103
-12 bearers (-10.4%)
Per 100,000 0.03
Rank movement Down 10,041 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #142,819 | 107 | 0.04 | First available Census row | First available Census row |
| 2010 | #144,141 | 115 | 0.04 | +8 bearers (+7.5%) | Down 1,322 places |
| 2020 | #154,182 | 103 | 0.03 | -12 bearers (-10.4%) | Down 10,041 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 Mckiddie 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 | #154,182 | -7.0% |
| Count | 115 | 103 | -10.4% |
| Per 100K | 0.04 | 0.03 | -13.9% |
Between the 2010 and 2020 Census, the number of Mckiddie bearers went from 115 to 103 (-10.4% change). The surname moved down 10,041 positions in the national ranking, going from #144,141 to #154,182.
FAQ
Mckiddie surname: questions and answers
How many people in the U.S. have the surname Mckiddie?
Name Census estimates that about 118 living Americans carry the surname Mckiddie. Using the current population baseline, that works out to roughly 1 in 2,904,698 residents.
How common is Mckiddie?
Mckiddie ranks #154,182 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.03 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 103 people with the surname Mckiddie. That is different from the site's living-bearer estimate (118), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.03 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.03 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 Mckiddie.
Has Mckiddie become more or less common over time?
Between 2010 and 2020, the surname Mckiddie went from 115 recorded bearers to 103. That is a decrease of 12 (-10.4%). In the national ranking it fell from #144,141 to #154,182.
What does the Census say about the background of Mckiddie?
Among Census respondents with the surname Mckiddie, the largest self-reported group is White at 85.4%. The next largest groups are American Indian/Alaska Native (7.8%) and Two or More Races (3.9%). 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 Mckiddie in the 2020 Census, accounting for 85.4% (88 people in the source table).
What is the full ancestry breakdown?
Mckiddie appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (85.4%), American Indian/Alaska Native (7.8%), Two or More Races (3.9%). 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 Mckiddie (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 Mckiddie mean?
Of Scottish origin, a diminutive form of the name MacDonald meaning "son of the brown-haired lad". 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 Mckiddie (0.03 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 people have the surname Mckiddie?
HowManyOfMe.org, our sister site, answers that with the living-bearer count in one glance.