RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4545 locations in the last 30 days (4714 reports) · Last sighting 16 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

1,215 reports match your filters.

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DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/16/20265110 S NAGLE AVEGarfield Ridge23Open—Mobile DeviceCity 311
9/16/20262650 S KOLIN AVESouth Lawndale22Open—Phone CallCity 311
9/16/20266210 S CLAREMONT AVEChicago Lawn16Open—Phone CallCity 311
9/16/20263126 N OCONTO AVEDunning29Open—Phone CallCity 311
9/16/20265130 S ELLIS AVEHyde Park5Open—Mobile DeviceCity 311
9/16/20262922 N KENNETH AVEHermosa31Open—Alderman's OfficeCity 311
9/16/20264915 S HERMITAGE AVENew City20Open—InternetCity 311
9/16/20265114 S NAGLE AVEGarfield Ridge23Open—InternetCity 311
9/16/2026300 N MASON AVEAustin29Open—Alderman's OfficeCity 311
9/16/20265150 W BERTEAU AVEPortage Park38Open—InternetCity 311
9/16/20267018 W 64TH PLClearing13Completed7 daysInternetCity 311
9/16/20264039 W MARQUETTE RDWest Lawn23Open—Phone CallCity 311
9/16/20265136 S MILLARD AVEWest Elsdon23Open—InternetCity 311
9/16/20268800 S CORNELL AVECalumet Heights8Open—Phone CallCity 311
9/16/20265825 S SANGAMON STEnglewood16Open—Phone CallCity 311
9/16/2026650 W 61ST STEnglewood16Open—Phone CallCity 311
9/16/20262748 S TRUMBULL AVESouth Lawndale22Open—InternetCity 311
9/16/20265113 S WOODLAWN AVEHyde Park4Open—InternetCity 311
9/16/2026157 W DIVISION STNear North Side27Open—InternetCity 311
9/16/20265036 N ALBANY AVEAlbany Park33Open—InternetCity 311
9/16/20265076 W MONROE STAustin28Open—Phone CallCity 311
9/16/20261702 N TROY STHumboldt Park26Open—Mobile DeviceCity 311
9/16/20262300 N KARLOV AVEHermosa35Completed5 daysPhone CallCity 311
9/16/20262312 N KEELER AVEHermosa31Open—Phone CallCity 311
9/16/20261244 N NOBLE STWest Town1Open—Phone CallCity 311
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