Meridian Water & Sewer Assessment Fees (2026)

The City of Meridian operates its own water and sewer utilities, so one city fee schedule covers both connections. A new detached single-family home pays $7,937.44 in city water and sewer connection charges for a permit issued on or after October 1, 2026: a $1,696 water assessment, a $5,807 sewer assessment and $434.44 for a 3/4-inch meter with its radio transmitter in its own meter vault. Both assessments rose on June 1, 2026, by a combined $578. The caveat that matters most is that Meridian calls these charges “assessments,” not tap fees, and charges them per equivalent residential unit (ERU), so a home counted as more than one ERU pays a multiple. For how this compares nationally, see our guide to the cost to connect to city water.

Meridian tap and connection charges at a glance

The table below lists every Meridian row we verified. Read it as a menu, not a bill: a typical new house pays the two assessments once each and buys one water meter. Of the three meter rows priced for fiscal 2027, you pay one. The standard 3/4-inch meter in its own vault costs $434.44. Where two homes share one meter vault, each pays $359.86 because they split a dual-port transmitter. A fourth meter row shows the $422.37 price that applies to permits issued before October 1, 2026. The assessment amounts come from the city’s June 1, 2026 fee notice and match its online City Fees Schedule, which cites Resolution 26-2566. The meter prices come from the FY2027 water meter fee notice.

Worked example: a new home in Meridian

Assumptions: a detached house inside Meridian city limits, served by city water and city sewer, counted as one ERU, with a 3/4-inch meter. The table shows three versions, because the meter price depends on the permit date and on whether the lot has its own meter vault.

City of Meridian water and sewer connection charges for one single-family home (1 ERU)

How the base case adds up: $1,696 + $5,807 = $7,503 in assessments, plus $434.44 for the meter, is $7,937.44. Before June 1, 2026 the same assessments were $1,514 and $5,411, or $6,925. That means a house permitted in May 2026 paid $578 less in assessments than one permitted in June.

If a home needs a 1-inch meter, swap in $505.44 for the meter and the fiscal 2027 total becomes $1,696 + $5,807 + $505.44 = $8,008.44. The ERU is the multiplier to watch. The fee schedule lists each assessment as a fee “per Equivalent Residential Unit” for residential, multifamily and commercial customers. Meridian City Code Title 9 (sections 9-1-12 and 9-4-18) bases single-family assessments on one ERU and rates other uses from an ERU table or by the City Engineer. A project the city rates at more than one ERU pays a multiple, so ask how yours will be rated.

What Meridian’s fees don’t cover

The assessments buy capacity in Meridian’s water and wastewater systems, and the meter fee buys the meter and its radio transmitter. None of these fees pays for pipe on your lot. Your plumber or site contractor builds the private water line from the meter to the house and the sewer lateral from the house to the city’s service stub. The city also lists a $50 residential sewer/water combo inspection on its plumbing permit fee schedule. National estimates (methodology), which already include trenching:

• Sewer lateral: $50–$250 per foot, typical $100. At 50 feet, about $5,000.
• Private water line from the meter to the house: $30–$150 per foot, typical $50. At 50 feet, about $2,500.
• Street cut or bore, if one is needed: $1,000–$10,000 per crossing, typical $4,000.

Other one-time permit charges are not utility fees. The city’s worksheet lists police, fire and parks impact fees scaled by living area and a flat $5,803 Ada County Highway District impact fee for a single-family home. For a home of 1,701 to 2,500 square feet, the worksheet’s police, parks and fire fees are $402, $4,119 and $995. We have not added those to the utility total above. Electric service comes from Idaho Power. We could not load its line-extension tariff, so this page has no electric figures. We also have no Intermountain Gas hookup figure on file. For national ranges, see cost to run power to a property and gas line connection cost.

Paying Meridian fees: timing and process

Plan on paying the water and sewer assessments and the meter fee through Community Development as part of the building permit. The city’s residential fee worksheet estimates all three alongside the building permit fee, and the FY2027 meter notice is addressed to builders, contractors and applicants. The meter notices announce new prices by effective date, so a permit issued on or after October 1, 2026 should expect the fiscal 2027 meter price. Confirm the amount with the permit counter if your project is close to that date.

Questions about the fees go to Community Development at 33 E. Broadway Ave., Suite 102, 208-887-2211. Once the house is occupied, water and sewer accounts are handled by Utility Billing at 208-888-4439.

How Meridian compares with Boise next door

The two cities sit side by side but charge very differently. In Boise, the city handles only sewer. Most homes get water from Veolia Water Idaho, whose tariff has no hookup fee when a main fronts the lot. Boise’s sewer fee also varies with the home’s size and the lot’s density. A 2,100-square-foot home on a low-density lot pays $4,549.20 in fiscal 2026 sewer connection fees, plus an $84.42 tap-in permit, or $4,633.62.

Meridian charges one flat sewer assessment regardless of house size, and it adds a water assessment and a meter. For the same 2,100-square-foot house, Meridian’s utility total is $7,937.44 against Boise’s $4,633.62, a gap of $3,303.82. Sewer alone is $5,807 in Meridian versus $4,549.20 in Boise. Boise’s FY2027 proposed budget would raise its figure to $5,133, still $674 below Meridian. Even a Boise house over 2,800 square feet on a low-density lot pays $5,726.64, less than Meridian’s sewer assessment alone.

Upcoming changes in Meridian

• October 1, 2026: fiscal 2027 meter prices take effect. The 3/4-inch meter with a single-port transmitter rises from $422.37 to $434.44, the shared-vault price from $323.92 to $359.86 and the 1-inch meter from $486.64 to $505.44, according to the FY2027 notice.
• June 1, 2026 (already in effect): the water assessment went from $1,514 to $1,696 and the sewer assessment from $5,411 to $5,807. The city has not published a date for the next assessment change. Check the online fee schedule before paying.

Meridian tap fee FAQ

More on Meridian and nearby cities

Farther west, Nampa’s impact and hookup fee schedule charges two separate fee layers for a new house.

Boise tap fees · sewer tap fee · water tap fee · tap fee vs impact fee · water meter installation cost · Salt Lake City tap fees · tap fees by city · utility connection cost calculator

Official documents behind the Meridian figures

• Water & Sewer Fee Increase, effective June 1, 2026, City of Meridian Community Development. Checked Sep 24, 2026.
• City Fees Schedule (online): Public Works 2.1 Water and Sewer Fees; Building 1.4 Plumbing Fees, City of Meridian. Checked Sep 24, 2026.
• Water Meter Fee Increase, FY2027 (effective Oct 1, 2026), City of Meridian Community Development. Checked Sep 24, 2026.
• Water Meter Fee Increase, effective March 5, 2025, City of Meridian Community Development. Checked Sep 24, 2026.
• Residential Fee Calculation Worksheet (June 1, 2026, estimate only), City of Meridian. Checked Sep 24, 2026.
• Meridian City Code, Title 9 Water and Sewer (sections 9-1-12 and 9-4-18, assessment fees), Municode. Checked Sep 24, 2026.
• Fee Schedules, Calculators & Estimating, City of Meridian. Checked Sep 24, 2026.