Nearly five months since the election and experts are still scratching their heads and wondering how Trump made a come from behind victory that almost none of them were expecting.

Decision Desk HQ, an independent election return firm, decided to break down the entire results precinct by precinct. The map shows how neighborhoods split decisively for either Hillary or Trump.

Take New York City and the surrounding areas, for example. Trump scored a win in Staten Island, south Brooklyn, pockets of Queens, eastern Long Island, and even parts of Connecticut that hadn't turned red in decades.

Meanwhile, Clinton scored big numbers in the very rich areas of Stanford and Greenwich, Conn., the Hamptons in Long Island, Westchester, as well as Manhattan and the trendy areas of north Brooklyn and eastern New Jersey.

Another remarkable change was in Northern Virginia outside Washington D.C., where the divide between red and blue state America forms in Loudoun and Prince William Counties.

It also portrays how Republican Maryland is outside of Washington D.C., Baltimore, and their suburbs.

Decision Desk also mapped out how some areas have changed, precinct by precinct since 2008 when President Obama first ran.

Focusing on two regions, Decision Desk showed how Democrats have lost most of the areas they use to dominate parts of New York, Pennsylvania, Ohio, Indiana, and Michigan. As well as how Republicans are on the retreat in Dallas' suburbs of Plano and Highland Park.

https://twitter.com/DecisionDeskHQ/status/847648012306268160

Patrick Ruffini another election analyst also videoed the change in New England, Chicago, New York City, and upper Midwest.

The shifting borders of red and blue in Chicago. pic.twitter.com/cXNI9VjeNi — Patrick Ruffini (@PatrickRuffini) March 31, 2017

Lots going on in New England and upstate NY. pic.twitter.com/lfNMYiq62h — Patrick Ruffini (@PatrickRuffini) March 31, 2017

Rich people in Greenwich and Westchester. From Obama to Romney to Hillary. pic.twitter.com/3CsAUJT2dr — Patrick Ruffini (@PatrickRuffini) March 30, 2017

The Upper Midwest embraces its destiny. pic.twitter.com/1vF2rTYv5Q — Patrick Ruffini (@PatrickRuffini) March 30, 2017

The realignment of CT burbs & Westchester vs. Long Island. pic.twitter.com/VDISnknhz6 — Patrick Ruffini (@PatrickRuffini) March 30, 2017

Check out the map and see how your neighborhood voted in 2016.