RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4731 locations in the last 30 days (4887 reports) · Last sighting 22 hours ago

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What am I looking at?

Each circle is a Chicago neighborhood. The number is its report count — click one to zoom in and see individual sightings there.

32080fewer → more

Colors are relative to what’s currently on screen, so they adjust as you switch time ranges.

Zoomed into a neighborhood or zip? Same colors group nearby reports, and a bright dot means that exact spot’s been reported more than once.

Why Chicago keeps score on its rats

Chicago has topped national rankings of the rattiest U.S. cities for over a decade running — a reputation the city itself takes seriously enough to run one of the country’s most active 311 rodent-complaint programs. Every baiting request, burrow report, and complaint filed with the city becomes a public record. RatCity turns that record, plus reports from people who live here, into a map you can actually use: is this block bad? Is it getting worse? Which neighborhood is winning (or losing) the fight this month?

What’s actually on the map

Most of the data is Chicago’s own — every “Rodent Baiting/Rat Complaint” filed through 311, pulled in automatically once a day so the map never goes stale. Layered on top are sightings reported directly by visitors, matched to the same neighborhood and zip-code boundaries the city uses, so a resident’s report and an official 311 complaint carry equal weight on the map.

Reading the map

Circles are sized and colored by how many reports a neighborhood has racked up — blue is quiet, red means trouble. The Day / Week / 30 Days / Year toggle up top changes the window, so you can see whether a neighborhood’s rat problem is a one-week blip or a year-long trend. Whoever’s in the lead gets crowned the neighborhood Rat King in the sidebar, a title that changes hands as new reports come in.

Noticed a rat that isn’t on the map yet? Use “Report a sighting” above — it takes under a minute and goes live as soon as it’s reviewed. Curious about where the data actually comes from or how reports are moderated? See the About page for the full breakdown.

Want more? The blog has weekly trend recaps and guides on Chicago’s rat problem and how to keep it out of your home.

Browse every sighting

54,807 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
11/3/20251520 W CHASE AVERogers Park49Completed2 daysspot-open311-Chicago+WorksCity 311
7/6/20261520 W DIVISION STWest Town1Completed4 daysInternetCity 311
8/9/20261520 W WOLFRAM STLake View32Completed15 daysMobile DeviceCity 311
9/22/20261521 E 84TH PLAvalon Park8Completed14 daysInternetCity 311
3/5/20261521 N PARKSIDE AVEAustin29Completed1 dayPhone CallCity 311
10/29/20251521 N PAULINA STWest Town1Completed1 dayInternetCity 311
5/29/20261521 N SPRINGFIELD AVEHumboldt Park26Completed6 daysAlderman's OfficeCity 311
8/7/20251521 S HARDING AVENorth Lawndale24Completed1 dayPhone CallCity 311
7/30/20251521 S HARDING AVENorth Lawndale24Completed6 daysPhone CallCity 311
10/14/20251521 S HARDING AVENorth Lawndale24Completed8 daysInternetCity 311
9/16/20251521 S HARDING AVENorth Lawndale24Completed1 dayPhone CallCity 311
11/12/20251521S S HARDING AVENorth Lawndale24Completed1 dayPhone CallCity 311
7/22/20261521 W 71ST PLWest Englewood17Completed9 daysPhone CallCity 311
3/12/20261521 W 73RD PLWest Englewood17Completed4 daysPhone CallCity 311
7/22/20261521 W OAKDALE AVELake View32Completed13 daysMobile DeviceCity 311
8/25/20261521 W SUNNYSIDE AVEUptown47Completed15 daysInternetCity 311
3/19/20261521 W TAYLOR STNear West Side28Completed0 daysAlderman's OfficeCity 311
9/3/20251521 W WALTON STWest Town1Completed13 daysMobile DeviceCity 311
10/13/20251522 E 55TH STHyde Park5Completed4 daysMobile DeviceCity 311
9/15/20261522 E 71ST PLSouth Shore8Completed13 daysMobile DeviceCity 311
6/20/20261522 E 77TH STSouth Shore8Completed4 daysPhone CallCity 311
6/20/20261522 E 77TH STSouth Shore8Completed4 daysPhone CallCity 311
10/8/20251522 N ARTESIAN AVEWest Town1Completed9 daysInternetCity 311
5/29/20261522 N AVERS AVEHumboldt Park26Completed5 daysPhone CallCity 311
7/14/20261522 N AVERS AVEHumboldt Park26Completed10 daysAlderman's OfficeCity 311
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