2000
#9,962
National surname rank
Recorded bearers 2,988
First available Census row
Per 100,000 1.11
Rare Last name
Lain
A variant of Lane, referring to someone who lived near a lane or path.
According to the 2020 US Census Bureau surname tables, roughly 2,637 Americans carry the last name Lain. That puts it at #12,789 in the national surname ranking, appearing at a frequency of 0.77 per 100,000 people (about 1 in 129,979 residents).
This page is the full Name Census profile for the Lain 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 Lain with 1881 census detail, origin facts and modern UK distribution where available.
Bearers in the US
2.6K
1 in 129,979
Census rank
#12,789
2020 decennial data
Per 100,000
0.8
Frequency rate
Recorded bearers
2.3K
rare in the US
Popularity narrative
The Census Bureau recorded 2,300 bearers of the surname Lain in its 2020 decennial surname file. At a rate of 0.77 per 100,000 residents, it holds the 12789th position in the national surname ranking.
Among Census respondents with the surname Lain, the largest self-reported group is White at 79.3%. The next largest groups are Black (8.6%) and Two or More Races (4.2%).
Origin
Meaning and origin of Lain
The surname Lain has its origins in the northern regions of England, particularly in the counties of Northumberland and Yorkshire. It is believed to have emerged during the medieval period, sometime around the 12th or 13th century.
One of the earliest recorded instances of the name can be found in the Pipe Rolls of Yorkshire from the year 1176, where it is spelled as "Lain." This spelling variation suggests that the name may have derived from an Old English personal name or a place name.
Some scholars suggest that Lain could be a variant of the Old English name "Læfing," which means "the beloved" or "the dear one." Others propose that it may be related to the Old Norse word "leyna," meaning "to conceal" or "to hide," potentially indicating an occupational surname for someone who worked in a secret or concealed profession.
In the Domesday Book of 1086, a survey of landholdings commissioned by William the Conqueror, there are several references to places with similar names, such as "Laindon" in Essex and "Laneham" in Nottinghamshire. These place names could have influenced the development of the surname Lain, as it was common for people to adopt surnames derived from the places they lived or were associated with.
One of the earliest recorded individuals with the surname Lain was John Lain, a merchant from York who was mentioned in the Lay Subsidy Rolls of 1301. In the 14th century, a Richard Lain was recorded as a landowner in the village of Laneham, Nottinghamshire, in the Nomina Villarum of 1316.
During the 16th century, the Lain family had a notable presence in the northern counties. In 1586, Robert Lain was born in Northumberland and later became a renowned scholar and author, publishing works on theology and philosophy.
In the 17th century, the Lain surname gained prominence in the legal and political spheres. Sir Thomas Lain (1615-1687) was a notable lawyer and judge who served as the Lord Chief Baron of the Exchequer during the reign of King Charles II.
In the 18th century, the Lain family had connections to the arts and literature. William Lain (1725-1801) was a prominent poet and playwright from Yorkshire, known for his satirical works and contributions to the Yorkshire literary scene.
As the centuries progressed, the Lain surname spread to various parts of England and beyond, with individuals bearing this name making their mark in various fields and professions.
Demographics
Ancestry and ethnicity for Lain
Among Census respondents with the surname Lain, the largest self-reported group is White at 79.3%. The next largest groups are Black (8.6%) and Two or More Races (4.2%).
The bar chart below shows how Lain 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 Lain surname at the time of the 2020 Census, not any inherent property of the name itself.
- White79.3% · 1,825
- Black or African American8.6% · 197
- Two or more races4.2% · 96
- Asian and Pacific Islander3.6% · 83
- Hispanic or Latino3.5% · 80
- American Indian and Alaska Native0.8% · 19
Timeline
Historical Census data for Lain
Lain 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
#11,815
National surname rank
Recorded bearers 2,649
-339 bearers (-11.3%)
Per 100,000 0.90
Rank movement Down 1,853 places
2020
#12,789
National surname rank
Recorded bearers 2,300
-349 bearers (-13.2%)
Per 100,000 0.77
Rank movement Down 974 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #9,962 | 2,988 | 1.11 | First available Census row | First available Census row |
| 2010 | #11,815 | 2,649 | 0.90 | -339 bearers (-11.3%) | Down 1,853 places |
| 2020 | #12,789 | 2,300 | 0.77 | -349 bearers (-13.2%) | Down 974 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 Lain 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 | #11,815 | #12,789 | -8.2% |
| Count | 2,649 | 2,300 | -13.2% |
| Per 100K | 0.90 | 0.77 | -14.5% |
Between the 2010 and 2020 Census, the number of Lain bearers went from 2,649 to 2,300 (-13.2% change). The surname moved down 974 positions in the national ranking, going from #11,815 to #12,789.
FAQ
Lain surname: questions and answers
How many people in the U.S. have the surname Lain?
Name Census estimates that about 2,637 living Americans carry the surname Lain. Using the current population baseline, that works out to roughly 1 in 129,979 residents.
How common is Lain?
Lain ranks #12,789 in the 2020 Census surname tables and is classified on this site as "Rare." The Census recorded the name at a frequency of 0.77 per 100,000 residents, which is about 1 people out of every 100,000.
How many people with this surname were counted in the Census?
The raw 2020 Census file counted 2,300 people with the surname Lain. That is different from the site's living-bearer estimate (2,637), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.77 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.77 per 100,000 means that if you picked a random group of 100,000 U.S. residents, you would expect about 1 of them to have the surname Lain.
Has Lain become more or less common over time?
Between 2010 and 2020, the surname Lain went from 2,649 recorded bearers to 2,300. That is a decrease of 349 (-13.2%). In the national ranking it fell from #11,815 to #12,789.
What does the Census say about the background of Lain?
Among Census respondents with the surname Lain, the largest self-reported group is White at 79.3%. The next largest groups are Black (8.6%) and Two or More Races (4.2%). 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 Lain in the 2020 Census, accounting for 79.3% (1,825 people in the source table).
What is the full ancestry breakdown?
Lain appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (79.3%), Black (8.6%), Two or More Races (4.2%). 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 Lain (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 Lain mean?
A variant of Lane, referring to someone who lived near a lane or path. 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 Lain (0.77 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 Lain?
HowManyOfMe.org, our sister site, answers that with the living-bearer count in one glance.