This is the City's calendar year 2017 annual operating budget. The information includes a breakdown by fund, category, department, division, and expense type. The City's total CY2017 expense budget is $444.88 million and the CY2017 revenue budget is $442.30 million.

Spending by City departments on goods and services. Dataset is used in Open Checkbook to create highly-interactive charts, graphs and tables how the City allocates public funds. Open Checkbook is part of the City's commitment to open data.

Open Budget will be released later in 2018.

All of the City's capital improvement projects over the next five years. This information categorizes the City's projects and includes information regarding funding sources, expense types, and asset types.

Special Events Cultural Amenities (SECA) grant awards from fiscal year 2010 through calendar year 2018. The mission of the Special Events Cultural Amenities (SECA) Grant Program is to create opportunities to provide social events and artistic experiences for Naperville and its visitors.

Electric utilities use the System Average Interruptible Duration Index (SAIDI) to measure the reliability of electric utility systems. The SAIDI represents the average number of minutes each customer can expect to be without power in a given year. This is a comparison of Naperville with Com Ed SAIDI data.

A count of some of the major water and wastewater assets within the City of Naperville years 2013-2018.

Citywide total daily electric load (usage) measured hourly, presented here as a daily total beginning on January 1, 2012 through last updated date.

The City's outstanding debt service schedule. The dataset includes annual principal and interest payments for all outstanding debt.

A hate crime is defined by the FBI as a “criminal offense against a person or property motivated in whole or in part by an offender’s bias against a race, religion, disability, sexual orientation, ethnicity, gender, or gender identity.”

The State of Illinois Police (I.S.P.) and Federal Bureau of Investigations (F.B.I.) have specific reporting guidelines for Hate Crime data. Due to the Naperville Police Department’s proactive stance on this crime type, data presented on the Open Data Portal may differ with what is reported through ISP and the FBI. For information on the guidelines set forth, please visit https://www.isp.state.il.us/crime/ucrhome.cfm for further details.

A monthly surcharge has been added to customer utility bills to help fund mandated improvements to the Springbrook Water Reclamation Center for the purpose of removing phosphorus nutrients. The purpose of this surcharge is to fund 50% of the estimated cost of these improvements.