Where is New City Reservoir?

New City Reservoir is a lake in Randolph County, Illinois. Its water-quality measurements are published by Illinois EPA and shown on this page as reported.

How deep is New City Reservoir?

New City Reservoir has a maximum depth of 12 feet and an average depth of 5.1 feet. The lake covers 45 acres.

Are there boat ramps on New City Reservoir?

New City Reservoir has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Sparta Reservoir (North). Public access is listed as yes.

Can I fish at New City Reservoir?

New City Reservoir has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Illinois's fish and wildlife agency, so check its current regulations before you go.

New City Reservoir

Randolph County, Illinois45 acresView map Directions

No nutrient or algae sampling on record from Illinois EPA for this lake.

Max depth

12 ft

Bathymetric survey

Area

45 acres

Surface area

Shoreline

2.4 mi

Measured length

Impaired · Nutrients (phosphorus, nitrogen)
12 ft max depth
Public access

See the measurements Directions Where to stay

New City Reservoir in Randolph County, Illinois has water-quality measurements published by Illinois EPA, shown here as reported. Maximum depth: 12 ft. Surface area: 45 acres.

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New City Reservoir is a 45-acre lake in Randolph County, Illinois with a maximum depth of 12 feet (5-foot average). Limited fish-species data available. Public access is available with 1 public boat landing.

Source: EPA Water Quality Portal sampling records, Illinois EPA. Methodology: how these readings are compared.

What New City Reservoir is good for

From access and monitoring records, not editorial picks.

Boat launch1 documented ramp

Swimming conditions

No reading

Not rated

Nutrient and algae readings are not a swimming clearance. New City Reservoir is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.

Whether New City Reservoir is safe to swim in today is a call for the Illinois Environmental Protection Agency and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for New City Reservoir

These are the measurements Illinois EPA publishes for New City Reservoir, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

No clarity data. TSI undefined.

Ask about New City Reservoir

Answers come straight from the public measurements and survey records on this page.

Lake Details

Max depth

12 ft

Average depth

5.1 ft

Surface area

45 acres

Shoreline

2.4 mi

Public access

Yes

Listed by Illinois EPA

Recreation & Access

Boat Landings

Yes

Public Access

Sparta Reservoir (North)Public

Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps

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Stays near New City Reservoir

Compare lakeside cabins, hotels, and vacation rentals near New City Reservoir in Randolph County, Illinois — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.

Top-rated places to stay near New City Reservoir

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Fishing New City Reservoir

→ New City Reservoir fishing regulations (limits, seasons, special rules)

EPA Impairment Status

New City Reservoir is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).

Causes of impairment

Nutrients (phosphorus, nitrogen)

Designated uses not supporting: Other.

Source: EPA ATTAINS assessment unit IL_RII · Official waterbody report

Nearby Lakes in Randolph County

Old City Reservoir2 miView →Sparta Northwest Lake2.6 ft clear · Hypereutrophic2.1 miView →Coulterville Lake2.7 ft clear · Hypereutrophic5.8 miView →West C Streamline Lake6.9 miView →Randolph County Lake12.5 miView →Randolph Lake1.7 ft clear · Hypereutrophic12.6 miView →

Frequently asked questions about New City Reservoir

Where is New City Reservoir?: New City Reservoir is a lake in Randolph County, Illinois. Its water-quality measurements are published by Illinois EPA and shown on this page as reported.
What is the water quality of New City Reservoir?: New City Reservoir in Randolph County, Illinois has water-quality measurements published by Illinois EPA, shown here as reported. Maximum depth: 12 ft. Surface area: 45 acres.
Is New City Reservoir safe to swim in?: Nutrient and algae readings are not a swimming clearance. New City Reservoir is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.
How deep is New City Reservoir?: New City Reservoir has a maximum depth of 12 feet and an average depth of 5.1 feet. The lake covers 45 acres.
Are there boat ramps on New City Reservoir?: New City Reservoir has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Sparta Reservoir (North). Public access is listed as yes.
Can I fish at New City Reservoir?: New City Reservoir has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Illinois's fish and wildlife agency, so check its current regulations before you go.