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Ottawa city, IL

ZIP Code 61350 — Ottawa city, IL Demographics & Data

Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.

Middle ClassLow Snow Area

Map, Quick Facts & Location

Quick Facts

Local time
Population
23,999
Median Income
$77,562
+3% vs US avg
Home Value
$157,100
-55% vs US avg
Median Rent
$770
-34% vs US avg
Median Age
42.3 yrs
+9% vs US avg
Area Code
Congress
Top Ancestry
GermanIrishEnglish
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Location
Coordinates
41.3721, -88.8651
Elevation
525 ft
Land Area
153.7 sq mi
Water Area
5.3 sq mi (3% water)

At a glance

Population
23,999
Density
N/A
Median income
$77,562
+3% vs US avg
Home value
$157,100
-55% vs US avg
Median rent
$770
-34% vs US avg
Timezone

Overview of ZIP Code 61350

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What to know about ZIP 61350

ZIP code 61350 covers Ottawa, IL in LaSalle County with a population of about 23,999.

At a glance, the area shows median age of 42.3 versus a U.S. median of about 38.9.

It sits in telephone area codes 779, 815; U.S. House district IL-14; the CHICAGO media market.

Income and economy in Ottawa, IL

Median household income in ZIP 61350 is about $77,562 — about 3% above the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 12.4%; unemployment rate near 6.0%; 21.6% of adults with a bachelor’s degree or higher (about 12.1 points below the national share (33.7%)).

Labor and commute patterns include leading industry context around Healthcare, Retail trade, and Manufacturing; about 4.0% of workers reporting work-from-home (about 11.2 points below the U.S. share (15.2%)); a mean commute of about 180.0 minutes (U.S. average near 26.8).

Housing and affordability in ZIP 61350

Median home value is about $157,100 — about 55% below the U.S. median home value ($348,079).

Housing tenure and rents show median gross rent around $770 (about 34% below the U.S. median rent ($1,163)), and owner-occupancy near 73.3% (about 7.9 points above the national owner-occupancy rate (65.4%)).

To comfortably buy a median-priced home in ZIP 61350 in Ottawa, IL, a household would need roughly $43,000 in annual income under a 20% down, 30-year loan at 6.8% (illustrative), keeping housing costs near 28% of income. Estimated monthly PITI is about $1,009. That sits below the local median household income ($77,562), suggesting the typical household income is closer to a workable buy-in level under these assumptions. Rates, taxes, insurance, and HOA fees vary — treat this as a planning estimate, not a lender quote.

Climate risk and migration signals

FEMA’s National Risk Index rates natural-hazard risk for Ottawa city, IL as Relatively Moderate (composite score 86.1), which is elevated versus much of the country. The strongest component scores on US5 are flood (88.2) and hurricane (30.3). These scores are county-linked NRI values published for planning context — all ZIP codes in the same county share the same composite score on US5. Useful when comparing insurance and disaster exposure across areas, not a substitute for a parcel-level flood or fire determination.

Climate normals for Ottawa city, IL show little to no average snow and around 36.2 inches of annual precipitation.

IRS migration statistics show a net inflow of about 1,336 for ZIP 61350 (Ottawa city, IL) on US5’s published series — a signal of people/tax filers moving in relative to those leaving. Inflows often track job growth, housing demand, or lifestyle migration; treat the figure as a directional indicator rather than a precise headcount.

Nearby (from this ZIP)

Airport DPA (48.8 miles (78.6 km)) · Illinois Valley Community College (13.0 miles (21.0 km)) · Pullman National Historical Park (68.7 miles (110.5 km)) · VA: LaSalle Clinic (12.5 miles (20.1 km))

Full lists and map pins are in the Infrastructure section below.