What States Have a Rain Tax or Stormwater Fee? A U.S. Guide

Meta description: Find out which states have local stormwater fees, what “rain tax” means, how charges are calculated, and where homeowners can check their bills.

“Rain tax” is a nickname, not the usual name for a government tax. In the United States, stormwater fees are generally local charges that help pay to manage rainwater flowing off roofs, streets, parking lots, and other hard surfaces. Many states have cities, counties, or utility districts that charge them, but there is no single nationwide list—and a fee in one community does not mean every resident of that state pays it.

Maryland is especially associated with the phrase “rain tax,” but stormwater fees are used in communities across the country. The exact charge, who collects it, and whether a property owner can receive a credit depend on local rules.

What Is a Rain Tax or Stormwater Fee?

A stormwater fee is a recurring charge that helps fund public systems for handling rain and snowmelt. Those systems may include storm drains, pipes, ditches, detention ponds, wetlands, green infrastructure, and projects to reduce flooding or pollution. Stormwater runoff can carry sediment, oil, fertilizer, trash, and other pollutants into streams and lakes.

The term “rain tax” became widely known in Maryland during a state policy debate about stormwater management. It is often used by critics of these charges. Local governments and utilities typically call them stormwater fees, drainage fees, surface-water charges, or stormwater utility fees.

In many places, the fee is distinct from a property tax. It may appear on a water or sewer bill, a separate utility bill, or a local government statement. Its legal status and billing method vary by jurisdiction.

Which States Have Stormwater Fees?

Stormwater fees are local rather than statewide in most of the United States. The states below have well-known local programs or communities that assess stormwater-related charges. The list is illustrative, not an official or exhaustive inventory: local programs can change, and a fee may apply only within a city, county, or utility district.

That overview does not mean every property in these states is billed. A city resident may pay a fee while someone in a neighboring township does not. Some charges also apply only to certain customer types or properties.

Why Maryland Is Often Called the “Rain Tax” State

Maryland’s reputation comes from a 2012 state law requiring certain large, developed counties and Baltimore City to establish stormwater fee programs. The measure was intended to help fund pollution-control work, including improvements connected with the Chesapeake Bay cleanup. Opponents popularized “rain tax” as a label for the charges.

The original requirements were later changed. Maryland’s approach now gives local governments more discretion over how to fund stormwater work, and the name or structure of a charge can differ by locality. Maryland does not impose one uniform rain tax on every homeowner statewide. A property owner needs to check the applicable county or city rules.

Local funding can still support projects such as repairing drainage systems, controlling erosion, reducing polluted runoff, and meeting environmental permit obligations. A particular bill may use a fee, a tax-supported budget, grants, or a combination of funding sources.

How Stormwater Fees Are Calculated

Many programs estimate a property’s contribution to runoff based on the area of surfaces that prevent rain from soaking into the ground. Common examples include rooftops, paved driveways, roads, and parking lots. These are called impervious surfaces.

A utility may set a standard billing unit using the average impervious area on a typical residential parcel. A single-family home might be charged a standard amount, while a larger commercial site may be billed for several units. Other programs use property classifications, parcel area, estimated runoff, or a combination of factors.

• Flat residential rate: A set amount per home, sometimes adjusted by property type.
• Impervious-area rate: A charge based on measured or estimated hard surfaces.
• Tiered rate: A bill that groups properties into runoff or parcel-size categories.
• Utility-bill charge: A fee added to water, sewer, or drainage billing, even if it is not calculated from water use.

Because each local government designs its own system, two similar homes in different cities may receive different bills. The fee might not change with the amount of rain in a particular month; it is commonly a set recurring charge used to fund year-round infrastructure and maintenance.

What Does the Fee Pay For?

Stormwater systems are more than underground pipes. A local program may pay to inspect and maintain drains, clear culverts, repair channels, build storage basins, restore stream banks, and add green infrastructure such as rain gardens or permeable pavement. These measures can slow runoff, reduce localized flooding, and keep pollutants out of waterways.

Fees may also help a community meet requirements under federal and state water-quality permits. The federal Clean Water Act regulates many municipal storm sewer systems through National Pollutant Discharge Elimination System permits. Permit responsibilities vary by community, but they can include monitoring, public education, and measures to control polluted runoff.

Stormwater charges do not guarantee that a property will never flood. Flooding can result from intense rainfall, undersized or blocked drains, river or coastal conditions, and development patterns, among other causes. A fee supports a local program; it is not flood insurance and does not necessarily pay for damage to private property.

Can Property Owners Get a Discount?

Some utilities offer credits or adjustments for property owners who reduce runoff or manage it on-site. Depending on local rules, eligible features may include rain gardens, rain barrels, cisterns, green roofs, permeable pavement, or private detention systems. A credit may be available only when the feature meets design, inspection, and maintenance requirements.

Credits are not automatic or available everywhere. Some programs offer reductions to certain nonprofits, schools, or other property types; others limit credits to measures that meet specific technical standards. Property owners should review the local utility’s current application instructions before installing equipment or assuming a feature will lower a bill.

How to Find Out Whether a Property Is Charged

To check whether a home or business has a stormwater fee, start with the city, county, or utility responsible for the address. Search its official website for “stormwater utility,” “drainage fee,” “surface water charge,” or “stormwater billing.” A municipality’s boundaries may not match its postal address, so an address lookup or a call to the billing office can be more reliable than a general web search.

1. Review the bill. Look for a separate stormwater, drainage, surface-water, or runoff line item.
2. Check the billing authority. The city, county, water utility, sewer district, or regional authority may collect the charge.
3. Read the rate schedule. Confirm whether the amount is flat, based on impervious area, or assigned by a property category.
4. Ask about credits and appeals. Find out what documentation, site measurements, or applications are required.
5. Confirm the current rules. Local ordinances and program details can change, so use official, up-to-date sources.

Stormwater Fee Versus Property Tax

A stormwater fee and a property tax can both help fund local services, but they are not necessarily the same kind of charge. A fee is commonly tied to a particular utility service or funding program and may use runoff-related measures to set the bill. Property taxes are generally based on assessed property value and support a broader range of public services.

The distinction is not identical everywhere. Whether a charge is legally classified as a fee, tax, or assessment depends on state law, local ordinances, and how the program is structured. For that reason, the wording “rain tax” is not a reliable description of every local stormwater bill.

For program-specific information, consult the responsible government or utility. Useful starting points include the U.S. Environmental Protection Agency’s municipal stormwater information, the Philadelphia Water Department’s stormwater billing guidance, and the stormwater or drainage pages maintained by the relevant local authority.

Key Takeaways

• There is no single statewide “rain tax” across the United States. Stormwater fees are usually established and administered locally.
• Maryland is strongly associated with the “rain tax” nickname, but local rules vary and the state does not charge every resident one uniform fee.
• Many communities in states including Texas, Pennsylvania, Virginia, Oregon, Washington, and others bill for stormwater or drainage services.
• Charges commonly support drainage infrastructure, runoff pollution control, maintenance, and flood-mitigation projects.
• The local utility or government is the best source for a property’s rate, billing method, exemptions, and possible credits.