RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4335 locations in the last 30 days (4494 reports) · Last sighting 2 days 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

52,482 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/3/20263717 W 60TH STWest Lawn23Canceled0 daysPhone CallCity 311
4/7/20263669 N ELSTON AVEIrving Park33Completed0 daysMobile DeviceCity 311
2/17/20267029 W HENDERSON STDunning38Completed0 daysPhone CallCity 311
6/30/20265228 S MERRIMAC AVEGarfield Ridge23Completed0 daysPhone CallCity 311
4/23/20266439 S SANGAMON STEnglewood16Completed0 daysPhone CallCity 311
11/19/202510600 S TRUMBULL AVEMount Greenwood19Completed0 daysPhone CallCity 311
2/13/20264223 N MONITOR AVEPortage Park38Completed0 daysPhone CallCity 311
1/7/2026826 W ALTGELD STLincoln Park43Completed0 daysPhone CallCity 311
1/8/20261903 W DIVERSEY PKWYLincoln Park32Completed0 daysInternetCity 311
8/25/20261936 N HOYNE AVELogan Square32Completed0 daysPhone CallCity 311
1/8/20263214 W 63RD PLChicago Lawn14Completed0 daysPhone CallCity 311
1/9/20266042 S RICHMOND STChicago Lawn15Completed0 daysMobile DeviceCity 311
10/6/20256337 S CALIFORNIA AVEChicago Lawn16Completed0 daysPhone CallCity 311
9/17/20251432 W LEXINGTON STNear West Side34Completed0 daysInternetCity 311
7/8/20262043 E 93RD STCalumet Heights7Completed0 daysAlderman's OfficeCity 311
12/3/20254915 N MONTICELLO AVEAlbany Park33Completed0 daysPhone CallCity 311
6/12/20263608 S UNION AVEBridgeport11Completed0 daysAlderman's OfficeCity 311
1/9/20261818 W SUNNYSIDE AVELincoln Square47Completed0 daysPhone CallCity 311
12/10/20256116 N MEADE AVENorwood Park39Completed0 daysPhone CallCity 311
12/3/20251240 S CHRISTIANA AVENorth Lawndale24Completed0 daysPhone CallCity 311
1/9/20261444 S TRUMBULL AVENorth Lawndale24Completed0 daysMobile DeviceCity 311
6/12/20263243 S RIDGEWAY AVESouth Lawndale22Completed0 daysPhone CallCity 311
4/9/20266363 S LECLAIRE AVEClearing13Completed0 daysInternetCity 311
1/13/20266241 N TALMAN AVEWest Ridge50Completed0 daysPhone CallCity 311
1/13/20266247 N TALMAN AVEWest Ridge50Completed0 daysPhone CallCity 311
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