5 facts about illegal immigration in the U.S. | Pew Research Center – Pew Research Center
For the first time, the number of unauthorized immigrants living in the U.S. was lower in 2015 than it was at the end of the Great Recession in 2009. The origin countries of unauthorized immigrants also shifted during that time, with the number from Mexico declining and the number from other regions rising, according to the latest Pew Research Center estimates.
Here are five facts about the unauthorized immigrant population in the U.S.
1There were 11 million unauthorized immigrants in the U.S. in 2015, a small but statistically significant decline from the Centers estimate of 11.3 million for 2009.
The Centers preliminary estimate of the unauthorized immigrant population in 2016 is 11.3 million, which is statistically no different from the 2009 or 2015 estimates because it is based on a data source with a smaller sample size and larger margin of error. Unauthorized immigrants represented 3.4% of the total U.S. population in 2015. The number of unauthorized immigrants peaked in 2007 at 12.2 million, when this group was 4% of the U.S. population.
2Mexicans may no longer be the majority of U.S. unauthorized immigrants. They made up half of all unauthorized immigrants in 2016, according to the Centers preliminary estimate, marking the first time in at least a decade that they did not account for a clear majority of this population. Their numbers (and share of the total) have been declining in recent years: There were 5.6 million Mexican unauthorized immigrants living in the U.S. in 2015 and 2016, down from 6.4 million in 2009.
Meanwhile, the number of unauthorized immigrants from nations other than Mexico has grown since 2009, from 5 million that year to 5.4 million in 2015. Non-Mexicans numbered 5.7 million in the preliminary 2016 estimate, a total that was not statistically different from 2015.
From 2009 to 2015, the number of unauthorized immigrants from Asia and Central America rose. Increases in the number from other countries have mostly offset the decline in the number from Mexico (and a relatively small decrease in the number from South America).
3The U.S. civilian workforce includes 8 million unauthorized immigrants, accounting for 5% of those who were working or were unemployed and looking for work, according to separate Pew Research Center estimates. The 2014 number was unchanged from 2009 and down slightly from 8.2 million in 2007. The share of unauthorized immigrants in the civilian labor force was also down slightly from 2009 (5.2%) and 2007 (5.4%). Compared with their 5% share of the civilian workforce overall, unauthorized immigrants are overrepresented in farming and construction occupations (26% and 15%, respectively). In all industries and occupations, though, they are outnumbered by U.S.-born workers.
4Six states account for 59% of unauthorized immigrants: California, Texas, Florida, New York, New Jersey and Illinois. But individual states have experienced different trends. From 2009 to 2014, the unauthorized immigrant population decreased in seven states: Alabama, California, Georgia, Illinois, Kansas, Nevada and South Carolina. In all of them, the decline was due to a decrease in unauthorized immigrants from Mexico. In six states, the unauthorized immigrant population rose over the same time period: Louisiana, Massachusetts, New Jersey, Pennsylvania, Virginia and Washington. In all of these but Louisiana, the increases were due to growth in unauthorized immigrant populations from nations other than Mexico. (In Louisiana, the overall increase was driven by an increase in Mexican unauthorized immigrants.)
5A rising share of unauthorized immigrants have lived in the U.S. for at least a decade. About two-thirds (66%) of adults in 2014 had been in the U.S. at least that long, compared with 41% in 2005. A declining share of unauthorized immigrants have lived in the U.S. for less than five years 14% of adults in 2014, compared with 31% in 2005. In 2014, unauthorized immigrant adults had lived in the U.S. for a median of 13.6 years, meaning that half had been in the country at least that long. Only 7% of Mexican unauthorized immigrants had been in the U.S. for less than five years in 2014, compared with 22% of those from all other countries.
To learn more: Explore unauthorized immigrant population trends for states, birth countries and regions, and see an interactive map and detailed table showing our latest estimates of the unauthorized immigrant population by state.
Note: This post was originally published on Nov. 18, 2014, and has been updated to include more recent data.
Topics: Hispanic/Latino Demographics, Immigration, Immigration Trends, Migration, Unauthorized Immigration
Here is the original post:
5 facts about illegal immigration in the U.S. | Pew Research Center - Pew Research Center
- HSI Omaha leads investigation resulting in federal prison sentences for 2 criminal illegal aliens who conspired to steal millions from ATMs - ICE |... - July 16th, 2026 [July 16th, 2026]
- 5 arrested, including 3 criminal illegal aliens released into the country by the Biden administration, in Middle Tennessee human trafficking... - July 16th, 2026 [July 16th, 2026]
- ICE removes criminal illegal aliens to Honduras in partnership with Department of War - ICE | U.S. Immigration and Customs Enforcement (.gov) - July 16th, 2026 [July 16th, 2026]
- Dallas Fed Paper Links Illegal Immigration To Nearly A Third Of Home Price Growth - Dallas Express - July 16th, 2026 [July 16th, 2026]
- ICE continues removing dangerous criminal illegal aliens throughout June - ICE | U.S. Immigration and Customs Enforcement (.gov) - July 13th, 2026 [July 13th, 2026]
- Criminal illegal alien charged with aggravated assault on ICE officer in Florida - ICE | U.S. Immigration and Customs Enforcement (.gov) - July 13th, 2026 [July 13th, 2026]
- Dallas Fed report says illegal immigration during Biden administration helped raise housing cost - CBS News - July 13th, 2026 [July 13th, 2026]
- Did illegal immigration drive up US home prices? Here's what a Fed study found - The Times of India - July 7th, 2026 [July 7th, 2026]
- DACA Illegal Alien Who Previously Molested a Toddler Sentenced for Immigration Fraud - Department of Justice (.gov) - July 7th, 2026 [July 7th, 2026]
- Cape Town anti-illegal immigration campaign appeals for wider citizenry support - EWN - July 7th, 2026 [July 7th, 2026]
- Some foreign nationals believe govt couldve managed illegal immigration crisis better - EWN - July 7th, 2026 [July 7th, 2026]
- The Birthright Citizenship Dissents and Illegal Immigration - National Review - July 1st, 2026 [July 1st, 2026]
- From teacher pay to illegal immigration: New laws set to take effect in Mississippi - Magnolia Tribune - July 1st, 2026 [July 1st, 2026]
- Anti-illegal immigration activists in KuGompo urge govt to address their grievances - EWN - July 1st, 2026 [July 1st, 2026]
- Mthombeni says Gauteng police have capacity to manage weekly anti-illegal immigration protests - Inside Metros - July 1st, 2026 [July 1st, 2026]
- South Africa deploys police for widespread protests by groups opposing illegal immigration - Ottumwa Courier - July 1st, 2026 [July 1st, 2026]
- ActionSA Ekurhuleni Demands Action on Illegal Immigration and the Township Economy - ActionSA - July 1st, 2026 [July 1st, 2026]
- KuGompo City braces for anti-illegal immigration protest after Igbo king unrest - Daily Dispatch - June 24th, 2026 [June 24th, 2026]
- Illegal immigration: is it worth it? The answer is always NO. - MilitaryNews.com - June 24th, 2026 [June 24th, 2026]
- Are Americans footing the bill for illegal immigration, as Mike Lee says? - NPR Utah | KUER - June 24th, 2026 [June 24th, 2026]
- Government calls for protesters against illegal immigration to march peacefully - South African Government News Agency - June 24th, 2026 [June 24th, 2026]
- Meghalaya BJP Seeks Tougher Curbs on Illegal Immigration Amid Growing ILP Push - Northeast Live - June 24th, 2026 [June 24th, 2026]
- Some MPs blame the Department of Home Affairs for the illegal immigration crisis - EWN - June 24th, 2026 [June 24th, 2026]
- The true reality of illegal immigration - Daily Voice - June 24th, 2026 [June 24th, 2026]
- FACT FOCUS: Trump says illegal immigration increased car insurance premiums. Experts say otherwise - AP News - June 17th, 2026 [June 17th, 2026]
- Trump says G7 united on illegal immigration and drug trafficking - Fox News - June 17th, 2026 [June 17th, 2026]
- FACT FOCUS: Trump says illegal immigration increased car insurance premiums. Experts say otherwise - Northeast Mississippi Daily Journal - June 17th, 2026 [June 17th, 2026]
- Trump says G7 united on illegal immigration and stopping drug trafficking - Fox News - June 17th, 2026 [June 17th, 2026]
- Fact focus: Trump says illegal immigration increased car insurance premiums. Experts say otherwise - The Wenatchee World - June 17th, 2026 [June 17th, 2026]
- FACT FOCUS: Trump says illegal immigration increased car insurance premiums. Experts say otherwise - Herald Bulletin - June 17th, 2026 [June 17th, 2026]
- Fact focus: Trump says illegal immigration increased car insurance premiums. Experts say otherwise - MSN - June 17th, 2026 [June 17th, 2026]
- HSI St. Louis investigation leads to removal of illegal alien who attempted to give baby away to pay debt to smugglers - ICE | U.S. Immigration and... - June 16th, 2026 [June 16th, 2026]
- An illegal immigrant was working as a corrections officer in Maine before he was nabbed by Immigration and Customs Enforcement (ICE). ICE officers... - June 16th, 2026 [June 16th, 2026]
- Deportation hits illegal immigration supply. Mandatory E-Verify will address demand - Federation for American Immigration Reform - June 14th, 2026 [June 14th, 2026]
- ICE asks officials not to release Mexican criminal illegal alien and alleged drunk driver accused of killing Georgia mother - ICE | U.S. Immigration... - June 14th, 2026 [June 14th, 2026]
- 'You're destroying your countries': Is Europe finally heeding Trump's warning on illegal immigration? - Fox News - June 12th, 2026 [June 12th, 2026]
- DHS releases first VOICE and DHS VINE data reports emphasizing support for victims of illegal alien crime - ICE | U.S. Immigration and Customs... - June 12th, 2026 [June 12th, 2026]
- AFRICA/SOUTH AFRICA - Tightening on illegal immigration policies following a wave of xenophobia. Msgr. Sipuka states that "all domestic problems... - June 12th, 2026 [June 12th, 2026]
- Reconciliation Bill Will Ensure Immigration Enforcement Continues but Statutory Changes are Still Needed to Prevent Future Illegal Immigration Crises,... - June 12th, 2026 [June 12th, 2026]
- Can't we get tough on illegal immigration and still be compassionate to all? - IOL - June 12th, 2026 [June 12th, 2026]
- Illegal Immigrant Who Escaped During Immigration Office Escort Apprehended After About 19 Hours on the Run - - June 12th, 2026 [June 12th, 2026]
- Europe has reduced illegal immigration without goon tactics - The Economist - June 7th, 2026 [June 7th, 2026]
- Nearly 50 detained, 6 indicted in SC illegal immigration operation - WIS News 10 - June 7th, 2026 [June 7th, 2026]
- Lawsuit seeks to halt Tennessee law making illegal immigration a state crime - News From The States - June 7th, 2026 [June 7th, 2026]
- AG, Homeland Security, SLED announce arrests in illegal immigration case - FOX Carolina News - June 7th, 2026 [June 7th, 2026]
- Ramaphosa to address nation on illegal immigration as tensions rise - theherald.co.za - June 7th, 2026 [June 7th, 2026]
- ActionSA Disappointed by Presidents Weak and Reactionary Address on Illegal Immigration Crisis - ActionSA - June 7th, 2026 [June 7th, 2026]
- Another $90M for illegal immigration teed up - yoursun.com - June 7th, 2026 [June 7th, 2026]
- Florida Cabinet Prepares to Award Another $90 Million For Illegal Immigration Enforcement - FlaglerLive - June 7th, 2026 [June 7th, 2026]
- RECORDED | Ramaphosa addresses the nation on illegal immigration - Business Day - June 7th, 2026 [June 7th, 2026]
- Ramaphosa to address the nation on illegal immigration - Sowetan - June 7th, 2026 [June 7th, 2026]
- Ramaphosa vows crackdown on illegal immigration, warns against xenophobia - zimlive.com - June 7th, 2026 [June 7th, 2026]
- Criminal illegal alien arrested in Texas for allegedly opening fire on neighbors with assault rifle over Memorial Day weekend has been deported from... - June 3rd, 2026 [June 3rd, 2026]
- June 2: Sen. Liz Brown's bill on illegal immigration ceremonially signed into law - Fort Wayne Business Weekly - June 3rd, 2026 [June 3rd, 2026]
- ICE arrests 24 illegal aliens during 1-day targeted operation with federal, state and local partners in Texas - ICE | U.S. Immigration and Customs... - June 3rd, 2026 [June 3rd, 2026]
- Government is intensifying efforts to tackle illegal immigration: SA President - Channel Africa - June 3rd, 2026 [June 3rd, 2026]
- Ramaphosa to act on illegal immigration as anti-foreigner protests spread across SA - Daily Maverick - June 3rd, 2026 [June 3rd, 2026]
- Government intensifies fight against corruption, illegal immigration - South African Government News Agency - June 3rd, 2026 [June 3rd, 2026]
- Iran's Khamenei warns US will lose 'safe haven' in Gulf; Amit Shah forms panel on illegal immigration-lin - The Times of India - May 27th, 2026 [May 27th, 2026]
- Centre forms panel to study demographic shifts linked to illegal immigration - The Indian EYE - May 27th, 2026 [May 27th, 2026]
- Call for anti-illegal immigration demonstrators to operate within the law - EWN - May 27th, 2026 [May 27th, 2026]
- Assam urges Centre to seal its border with Bangladesh to prevent illegal immigration - News On AIR - May 27th, 2026 [May 27th, 2026]
- Government convenes urgent meeting over anti-illegal immigration protests - The Witness | Your compass in the community - May 27th, 2026 [May 27th, 2026]
- Big Banks and the U.S. Treasury Have Been Enabling Illegal Immigration for Two Decades - Center for Immigration Studies - May 25th, 2026 [May 25th, 2026]
- Judge Re-Blocks Provisions of Texas Illegal Entry Law - Federation for American Immigration Reform - May 25th, 2026 [May 25th, 2026]
- Ghana High Commission starts repatriation process after tensions over illegal immigration - EWN - May 25th, 2026 [May 25th, 2026]
- ICE arrests illegal alien accused of killing daughter in Arizona - ICE | U.S. Immigration and Customs Enforcement (.gov) - May 20th, 2026 [May 20th, 2026]
- EDITORIAL: Upholding the rule of law against illegal immigration - Colorado Springs Gazette - May 20th, 2026 [May 20th, 2026]
- Three-time deported illegal alien arrested and charged after assaulting federal immigration officers in the Eastern District of Texas - Herald... - May 20th, 2026 [May 20th, 2026]
- Border Control to Stop Illegal Immigration is Necessary to Protect the U.S., but Legal Immigration is Important Too - Daily Gate City - May 16th, 2026 [May 16th, 2026]
- Ramaphosa calls for unity against xenophobia and illegal immigration challenges - Cape Town ETC - May 11th, 2026 [May 11th, 2026]
- ICE lodges detainer on criminal illegal alien in Texas accused of beating victim unconscious, raping him while he was incapacitated - ICE | U.S.... - May 7th, 2026 [May 7th, 2026]
- Second Circuit Breaks with Others on Mandatory Detention of Illegal Entrants - Center for Immigration Studies - May 7th, 2026 [May 7th, 2026]
- New Legal Challenge to Texas Law Criminalizing Illegal Immigration Rebuked by Lt. Gov. Patrick - The Texan - May 7th, 2026 [May 7th, 2026]
- ICE confirms suspect in San Francisco stabbing is Venezuelan criminal illegal alien who entered the US under Biden administrations deadly... - May 7th, 2026 [May 7th, 2026]
- East End Officials Disgraceful Pandering to the Illegal Immigration Mob - Long Island Life & Politics - April 27th, 2026 [April 27th, 2026]
- New York to Further Shackle ICE to Shield Illegal Aliens - Federation for American Immigration Reform - April 10th, 2026 [April 10th, 2026]
- Virginia Gov. Spanberger addresses reporters on redistricting, illegal immigration - Fox News - April 10th, 2026 [April 10th, 2026]
- Bill creating state illegal immigration crime headed to Lee - Johnson City Press - April 10th, 2026 [April 10th, 2026]
- Letter: In regards to illegal immigration and the No Kings rally - Wadena Pioneer Journal - April 8th, 2026 [April 8th, 2026]