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Iowa City, IA Landscaping Rules: Water Restrictions (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Water restrictions in Iowa City, IA, also called the watering schedule, outdoor irrigation rules, or drought ordinance, set which days and hours you can run sprinklers or irrigation.

Key Facts

Governing section
Iowa City Code § 16-3C-11
Trigger
City Manager declares a water conservation emergency
Stage 1 watering window
New sod/plants only, 8 PM to 8 AM
Stage 1 cap
One inch of water per week
Stage 2
All outdoor watering banned, no exceptions
Violation classification
Municipal infraction plus possible water shutoff

Summary

Iowa City has no standing lawn-watering schedule, but City Code section 16-3C-11 lets the City Manager declare a water conservation emergency and impose outdoor irrigation limits in three escalating stages, starting with new-sod watering capped at one inch per week between 8:00 P.M. and 8:00 A.M., up to a total outdoor watering ban.

16-3C-11: EMERGENCY WATER CONSERVATION: ... B. ... Emergency Water Conservation Event: ... 1. Stage 1: Warning: ... After a warning has been declared, the following activities may be prohibited: a. Outdoor watering and irrigation, except in the case of an approved application submitted to the Iowa City Water Division for the watering of vegetation planted or sod laid during the current growing season, not to exceed one inch (1") of water use per week, with approved watering activities occurring between eight o'clock (8:00) P.M. and eight o'clock (8:00) A.M. ... 2. Stage 2: ... Emergency: At the emergency stage, the following activities may be prohibited: a. All restrictions listed in Stage 1. b. All outdoor water and irrigation, without exceptions.

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: 2026 S-26: Code current through: Ord. 26-4985, passed May 19, 2026).

Full Breakdown

Iowa City Code section 16-3C-11, Emergency Water Conservation, is the ordinance the city holds in reserve for drought or water-system stress rather than a permanent sprinkler schedule. The City Manager or a designee declares a water conservation emergency by written, signed notice filed with the City Clerk, stating when the declaration begins and which restrictions apply. Three escalating stages are available. M. Stage 1 can also bar washing vehicles outside a commercial water-reuse system, filling outdoor or private pools and ponds, outdoor pressure washing, nonessential hydrant flushing, bulk water sales, and use of contractor fire hydrant meters.

Stage 2, Emergency, keeps everything from Stage 1 and removes the exceptions: all outdoor watering and irrigation is prohibited without exception, all outdoor vehicle washing stops, public pools and splash pads cannot be filled, and the city can cut off water through single-purpose or irrigation meters while imposing case-by-case restrictions on individual customers. Stage 3, Prolonged Emergency, keeps the Stage 1 and 2 restrictions and adds strategic shutdowns of water service to entire areas of the city to preserve system integrity. The City Manager must issue a press release and other public notice when a stage is declared or changed, and may cancel or intensify the declaration at any time based on water supply.

Violations & Fines

Violating a declared Emergency Water Conservation restriction is a municipal infraction under section 16-3C-11(D), carrying the penalties set out elsewhere in the Iowa City Code for municipal infractions, and the city may also shut off water service as needed to stop continued waste. Because the ordinance takes effect only after a City Manager declaration, there is no penalty for ordinary lawn watering absent an active emergency notice.

Frequently Asked Questions

Does Iowa City restrict what days you can water your lawn?
Not as a standing rule. Section 16-3C-11 only imposes watering-day and watering-hour limits once the City Manager formally declares a water conservation emergency; without that declaration in effect, there is no citywide irrigation schedule to follow.
What can be watered during a Stage 1 water warning?
Only vegetation or sod planted during the current growing season, under a plan approved by the Iowa City Water Division, capped at one inch of water per week and limited to the hours of 8:00 P.M. to 8:00 A.M. Other outdoor watering is prohibited during Stage 1.
What happens if the city declares a Stage 2 emergency?
All outdoor watering and irrigation is prohibited outright with no exceptions, even for new landscaping. Outdoor vehicle washing, filling pools, and use of irrigation-only water meters are also cut off, and the city may impose additional case-by-case restrictions on individual customers.

Sources & Official References

Other rules in Iowa City

All Iowa City rules

How Iowa City compares: Cities with the Strictest Water Restrictions·Compare Iowa City to another location·View the Iowa landscaping rules overview

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