Assault reports in Chicago

Assault versus battery on IUCR rows

CPD's public extract uses Assault for threat or attempt events that are not filed as Battery. Battery is the contact/harm primary type; assault is the threat-or-attempt primary type as CPD applied IUCR on the report. Readers who collapse "assault and battery" into one phrase will overstate either table. This page is only the 37,107 assault rows.

Aggravated versus simple distinctions, when they exist, appear in IUCR codes or descriptions on the incident table. The packet facts supply a single primary-type count, so this narrative does not invent an aggravated subtotal. Weapons, injury, and relationship fields belong on the row if CPD published them. They are not inferred here.

Volume in the 410,083-incident extract

At 37,107 reports, about 9.0 percent of indexed Chicago incidents carry IUCR primary type Assault. That share describes the feed of 410,083 reports, not the share of all threats that occurred in the city. Unreported events never enter the 37,107. The type is still large enough to appear on almost any city-wide chart of this extract.

Person-crime maps attract more attention than property maps. The same privacy rules apply: block-level locations, official community area names, no street-number victim addresses. A dense cluster of assault reports can reflect nightlife, transit, schools, or household calls. The table does not assign a cause.

Reading the assault incident table

Sort by date to see how assault reports sit across the harvest window. Filter by community area if you need official city geography rather than a colloquial neighborhood name. Arrest flags, when present, still mean only that CPD recorded an arrest association on the incident, not that a charge survived in court.

Some rows will have incomplete coordinates or blank secondary fields. That is a source-data issue. LocalCrimeVault does not invent community areas to complete a map. If a row is later updated on the city portal, the indexed count of 37,107 can change in a future harvest.

Limits of a primary-type total

The 37,107 figure is not a count of unique offenders, unique victims, or emergency calls. One incident is one row. Multiple victims can share a report; multiple reports can involve the same people. Conviction, diversion, and declined-charge outcomes are outside the CPD incident extract.

Do not add assault and battery together and call the sum "violent crime" without stating that you combined two IUCR types and that homicide, robbery, and criminal sexual assault are separate types in the same 410,083-row city file. CPD's labels are the ones this site keeps.

Where the live tables sit

The Chicago assault type hub is the overlay for these 37,107 reports. The Chicago hub shows assault beside battery and the rest of the IUCR mix. A cross-city assault page is available for other agencies; their assault definition may not match Illinois IUCR. Cite CPD when you quote 37,107.

Cite 37,107 as Chicago Police Department incident rows with IUCR primary type Assault among 410,083 city reports (about 9.0 percent). Keep the label separate from battery. Searchers often type "assault and battery" as one phrase; the public feed does not. LocalCrimeVault does not reclassify charges to match that phrase.

Aggravated assault language, when it appears, lives on IUCR codes or descriptions. This packet has one primary-type total. Publishing an aggravated subtotal here would invent a number. Filter the overlay table and keep CPD's wording. Weapons mentioned on an assault row do not move the row onto the weapons-violation hub unless CPD assigned that primary type.

Citing assault as CPD labeled it

Underreporting is a known issue in victimization research for threats. That research is not a packet fact, and this page does not multiply 37,107 by a dark figure. The honest open-data claim is 37,107 public rows. Unfounded reports and recodes can move a future harvest.

Maps should stay coarse. Block-level locations and official community area names (77 areas) are what CPD published. A nightlife cluster of assault reports is a pattern of where reports were taken, not a finding about who lives on the block. Record the 37,107 / 410,083 pair when you reuse the figure.

Questions

How many assault reports are in the Chicago CPD extract?

This index includes 37,107 Chicago incidents with primary type Assault, about 9.0 percent of 410,083 city reports. Source: Chicago Police Department incidents on the city open-data portal. The total counts police reports, not convictions or unique people. LocalCrimeVault does not reclassify CPD charges. Assault is 37,107 of 410,083 indexed Chicago incidents in this harvest.

Is Chicago assault the same as battery?

No. CPD files Assault and Battery as different IUCR primary types. Assault on this page is the 37,107 rows labeled Assault. Battery is a separate type for completed contact or harm as CPD coded it. Combining them without saying so mixes two official labels and inflates either series.

Does an assault incident mean a felony conviction?

No. Public incident rows are reports. They can remain on the open-data feed without an arrest or after charges are not filed. The 37,107 count is report volume. Court case numbers and verdicts are not what this page totals. Read the table as CPD's published labeling of events.

Where should I compare assault to other Chicago crime types?

Use the Chicago hub to see assault next to the other types that make up 410,083 indexed city incidents. The assault type hub holds the row-level table. Cross-city assault pages use other agencies' feeds and may not follow IUCR. Always name CPD as the Chicago source.