RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4426 locations in the last 30 days (4587 reports) · Last sighting 23 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

57,251 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/15/20253840 N TROY STIrving Park33Completed10 daysInternetCity 311
7/27/20253801 S EMERALD AVEBridgeport11Completed10 daysInternetCity 311
10/10/20261030 E 47TH STKenwood4Completed10 daysPhone CallCity 311
9/14/20264047 S MAPLEWOOD AVEBrighton Park12Completed10 daysInternetCity 311
8/11/20264444 W LAWRENCE AVEAlbany Park39Completed10 daysInternetCity 311
9/25/20261229 N ARTESIAN AVEWest Town26Completed10 daysPhone CallCity 311
8/4/20255015 N SPRINGFIELD AVEAlbany Park39Completed10 daysInternetCity 311
8/23/20255139 S NEWCASTLE AVEGarfield Ridge23Completed10 daysMobile DeviceCity 311
9/8/20253900 W 63RD PLWest Lawn23Completed10 daysPhone CallCity 311
8/8/20253018 W CHASE AVEWest Ridge50Completed10 daysInternetCity 311
9/14/20265435 W WARWICK AVEPortage Park30Completed10 daysMobile DeviceCity 311
8/5/20252449 W 107TH STMorgan Park19Completed10 daysMobile DeviceCity 311
8/3/20255829 W AINSLIE STJefferson Park45Completed10 daysInternetCity 311
9/28/20261714 N LARAMIE AVEAustin37Completed10 daysAlderman's OfficeCity 311
8/29/20251713 S ASHLAND AVELower West Side25Completed10 daysPhone CallCity 311
9/5/202510636 S ALBANY AVEMount Greenwood19Completed10 daysInternetCity 311
7/20/20265200 N LINCOLN AVELincoln Square40Completed10 daysInternetCity 311
8/12/20257119 S WASHTENAW AVEChicago Lawn17Completed10 daysMobile DeviceCity 311
8/1/20251256 W WEBSTER AVELincoln Park2Completed10 daysAlderman's OfficeCity 311
9/2/20259001 S LOOMIS STWashington Heights21Completed10 daysPhone CallCity 311
9/8/20254230 S GREENWOOD AVEKenwood4Completed10 daysInternetCity 311
9/22/20261006 W 31ST STBridgeport11Completed10 daysPhone CallCity 311
8/29/20264106 W BARRY AVEAvondale31Completed10 daysInternetCity 311
10/6/20264730 W CONGRESS PKWYAustin24Completed10 daysPhone CallCity 311
7/28/20251931 S ALLPORT STLower West Side25Completed10 daysInternetCity 311
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