RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4552 locations in the last 30 days (4717 reports) · Last sighting 12 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.

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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

56,907 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/3/202521 W CHESTNUT STNear North Side42Completed3 daysInternetCity 311
9/16/20252200 N CICERO AVEBelmont Cragin26Completed13 daysAlderman's OfficeCity 311
2/13/20262200 N HALSTEDLincoln Park43Completed3 daysSalesforce Mobile AppCity 311
10/3/20252200 N HALSTED STLincoln Park43Completed7 daysPhone CallCity 311
10/12/20262200 N HOYNE AVELogan Square32Open—InternetCity 311
1/30/20262200 N KILDARE AVEHermosa35Completed3 daysPhone CallCity 311
9/15/20252200 N LARAMIE AVEBelmont Cragin26Completed11 daysPhone CallCity 311
10/15/20262200 N LOREL AVEBelmont Cragin36Open—Alderman's OfficeCity 311
5/27/20262200 N LOWELL AVEHermosa35Completed1 dayInternetCity 311
6/4/20262200 N MAGNOLIA AVELincoln Park2Completed1 dayAlderman's OfficeCity 311
8/4/20252200 N MAGNOLIA AVELincoln Park2Completed10 daysAlderman's OfficeCity 311
9/16/20252200 N MONITOR AVEBelmont Cragin36Completed10 daysPhone CallCity 311
1/12/20262200 N PULASKIHermosa35Completed0 daysSalesforce Mobile AppCity 311
6/4/20262200 N SOUTHPORT AVELincoln Park2Completed5 daysAlderman's OfficeCity 311
10/1/20262200 N SPAULDING AVELogan Square35Completed15 daysPhone CallCity 311
3/3/20262200 N SPAULDING AVELogan Square35Completed2 daysPhone CallCity 311
9/8/20252200 N TALMAN AVELogan Square1Completed10 daysInternetCity 311
10/9/20262200 S MARSHALL BLVDSouth Lawndale24Completed7 daysInternetCity 311
8/6/20262200 S MARSHALL BLVDSouth Lawndale25Completed5 daysInternetCity 311
3/20/20262200 S RIDGEWAY AVESouth Lawndale22Completed0 daysPhone CallCity 311
2/27/20262200 S SACRAMENTO AVESouth Lawndale24Completed0 daysPhone CallCity 311
3/7/20262200 S WABASH AVENear South Side3Completed4 daysInternetCity 311
9/24/20262200 S WABASH AVENear South Side3Completed7 daysPhone CallCity 311
8/30/20262200 W 19TH STLower West Side25Completed12 daysPhone CallCity 311
1/23/20262200 W 50TH PLGage Park15Completed3 daysPhone CallCity 311
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