RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4709 locations in the last 30 days (4862 reports) · Last sighting yesterday

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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
3/31/20266037 S FRANCISCO AVEChicago Lawn15Completed1 dayInternetCity 311
11/3/20257228 S SAWYER AVEChicago Lawn17Completed4 daysAlderman's OfficeCity 311
8/27/20266607 S ST LOUIS AVEChicago Lawn14Completed12 daysMobile DeviceCity 311
4/30/20265915 S SAWYER AVEChicago Lawn14Completed3 daysInternetCity 311
5/21/20266504 S ARTESIAN AVEChicago Lawn16Completed6 daysAlderman's OfficeCity 311
8/29/20263514 W 59TH PLChicago Lawn14Completed10 daysMobile DeviceCity 311
7/7/20265930 S WHIPPLE STChicago Lawn15Completed9 daysPhone CallCity 311
7/24/20266212 S ROCKWELL STChicago Lawn16Completed7 daysInternetCity 311
8/2/20256546 S CLAREMONT AVEChicago Lawn16Completed10 daysMobile DeviceCity 311
2/23/20266354 S ARTESIAN AVEChicago Lawn16Completed1 dayInternetCity 311
8/29/20262226 W 69TH STChicago Lawn16Completed12 daysInternetCity 311
10/5/20267249 S OAKLEY AVEChicago Lawn18Open—Phone CallCity 311
3/27/20266821 S ROCKWELL STChicago Lawn16Completed3 daysPhone CallCity 311
4/7/20266633 S SACRAMENTO AVEChicago Lawn15Completed1 dayPhone CallCity 311
9/17/20256444 S WASHTENAW AVEChicago Lawn16Completed6 daysPhone CallCity 311
9/8/20256501 S WHIPPLE STChicago Lawn15Completed9 daysAlderman's OfficeCity 311
2/19/20263019 W 71ST STChicago Lawn18Completed4 daysPhone CallCity 311
4/7/20266318 S CALIFORNIA AVEChicago Lawn15Completed1 dayInternetCity 311
10/4/20263412 W 62ND PLChicago Lawn14Open—Mobile DeviceCity 311
9/24/20256225 S ALBANY AVEChicago Lawn15Completed7 daysMobile DeviceCity 311
3/9/20262918 W MARQUETTE RDChicago Lawn15Completed3 daysPhone CallCity 311
4/29/20267200 S FAIRFIELD AVEChicago Lawn18Completed1 dayAlderman's OfficeCity 311
9/10/20256141 S MAPLEWOOD AVEChicago Lawn16Completed13 daysPhone CallCity 311
9/6/20252904 W 73RD STChicago Lawn18Completed10 daysInternetCity 311
7/19/20267206 S RICHMOND STChicago Lawn18Completed9 daysInternetCity 311
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