RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4738 locations in the last 30 days (4894 reports) · Last sighting 21 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
8/12/20257119 S WASHTENAW AVEChicago Lawn17Completed10 daysMobile DeviceCity 311
9/3/20266540 S MOZART STChicago Lawn15Completed15 daysAlderman's OfficeCity 311
5/20/20262938 W MARQUETTE RDChicago Lawn15Completed6 daysAlderman's OfficeCity 311
11/3/20256201 S ST LOUIS AVEChicago Lawn14Completed2 daysAlderman's OfficeCity 311
9/3/20253412 W 66TH STChicago Lawn14Completed12 daysAlderman's OfficeCity 311
5/27/20263325 W 64TH PLChicago Lawn14Completed5 daysMobile DeviceCity 311
5/28/20266648 S SPAULDING AVEChicago Lawn14Completed4 daysAlderman's OfficeCity 311
8/29/20263514 W 59TH PLChicago Lawn14Completed10 daysMobile DeviceCity 311
9/3/20263451 W 66TH STChicago Lawn14Completed5 daysPhone CallCity 311
11/4/20253500 W 60TH STChicago Lawn14Completed1 dayInternetCity 311
4/24/20266212 S ROCKWELL STChicago Lawn16Completed4 daysInternetCity 311
11/10/20257158 S KEDZIE AVEChicago Lawn17Completed2 daysMobile DeviceCity 311
8/5/20253309 W 60TH PLChicago Lawn14Completed6 daysPhone CallCity 311
8/18/20263340 W 60TH STChicago Lawn14Completed13 daysPhone CallCity 311
11/3/20256641 S RICHMOND STChicago Lawn15Completed1 dayInternetCity 311
6/12/20263414 W 72ND PLChicago Lawn17Completed4 daysInternetCity 311
2/15/20267119 S WASHTENAW AVEChicago Lawn17Completed1 dayMobile DeviceCity 311
4/11/20266400 S WHIPPLE STChicago Lawn15Completed2 daysInternetCity 311
1/14/20262241 W 71ST STChicago Lawn18Completed1 dayPhone CallCity 311
8/19/20252938 W MARQUETTE RDChicago Lawn15Completed7 daysAlderman's OfficeCity 311
6/15/20266509 S BELL AVEChicago Lawn16Completed1 dayInternetCity 311
8/19/20252918 W 63RD STChicago Lawn15Completed7 daysInternetCity 311
10/1/20263300 W 60TH PLChicago Lawn14Open—Phone CallCity 311
9/16/20266940 S BELL AVEChicago Lawn17Completed13 daysMobile DeviceCity 311
11/9/20257135 S CAMPBELL AVEChicago Lawn17Completed3 daysMobile DeviceCity 311
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