Home / Sewer & Septic / Unincorporated Pierce County, WA
Public permit data · updated Oct 18, 2026

Residential sewer and septic permits in Unincorporated Pierce County, WA

117 residential sewer and septic permits issued by Pierce County unincorporated, the 8 weeks ending Oct 15, 2026. Oct 15, 2026 is the latest issue date the source has published.

Quick answer. In the 8 weeks ending Oct 15, 2026, 117 residential sewer and septic permits were issued in Unincorporated Pierce County, WA, according to public records from Pierce County unincorporated. The busiest ZIP codes were 98374 (37 permits), 98391 (27 permits), 98444 (11 permits). The latest permit date published is Oct 15, 2026.

117
residential sewer and septic permits, the 8 weeks ending Oct 15, 2026
n/a
median declared value
13
ZIP codes with at least one permit
Oct 15, 2026
latest permit date published
14.6
permits per collected week on average
32
days with at least one permit issued

What a sewer and septic permit means in Unincorporated Pierce County

A residential sewer or septic permit covers lateral repairs, replacements, connections and septic systems. For a sewer contractor it marks blocks where old pipe is failing.

In Unincorporated Pierce County, permits were issued on 32 different days in the window; the most recent were Oct 14, 2026, Oct 13, 2026, Oct 12, 2026. The busiest ZIPs were 98374 (37), 98391 (27), 98444 (11).

By residential sewer and septic permit count, Unincorporated Pierce County ranks #9 of the 31 sewer and septic pages on this site and #2 of 3 in WA.

  • Mail the block around each lateral job.
  • Offer camera inspections to same-age houses nearby.
  • Track which ZIPs replace the most laterals.

See plans for Unincorporated Pierce County sewer and septic leads

Other work on the same permits

Share of these 117 permits whose type or description also matches another trade. These are the follow-on and partner trades on Unincorporated Pierce County jobs.

  • new construction: 94 permits (80%)
  • general remodel: 5 permits (4%)
  • garage: 1 permits (1%)
  • addition/ADU: 1 permits (1%)

Weekly trend

Permits per 7-day period, ending Oct 15, 2026. n/c = not collected yet (before our pipeline started pulling this source). It is not zero. Striped bars are partly collected weeks.

Aug 27Sep 3Sep 10Sep 17Sep 24Oct 1Oct 8Oct 15

Top permit types

Permit type / subtypePermitsShare
Sewer Residential10993%
Sewer Emergency Repair54%
Sewer Line Extension11%
Construction Residential11%
Site Dev Subdivision11%

Busiest ZIP codes

ZIPPermitsShare8-wk avg / week
983743732%4.88
983912723%3.50
98444119%2.00
9846687%1.88
9838787%1.12

8-wk avg / week is the trailing 8-week weekly average we quote in coverage checks for that ZIP and trade. It counts every source in the ZIP and includes permits with unknown use, so it can be higher than this page's residential count.

Work stated in the permit

WorkPermitsShare
septic76%
sewer connection / cap76%

Parsed from the permit's own type and work text. A permit can state more than one; many state none.

Sample rows

Anonymized: street address, permit number and any names removed. Subscribers get the full row with address, permit number and source link.

IssuedZIPPermit typeScopeWorkDeclared value
2026-10-1498444Sewer Residentialnew construction + sewernot statedn/a
2026-10-0298373Sewer Residentialnew construction + sewernot statedn/a
2026-09-1898466Sewer Residentialnew construction + sewernot statedn/a
2026-09-1698374Sewer Residentialnew construction + sewernot statedn/a
2026-09-0998391Sewer Residentialnew construction + sewernot statedn/a
2026-08-3198444Sewer Residentialnew construction + sewernot statedn/a

Source

  • Pierce County unincorporated: Permit records on internal.open.piercecountywa.gov (dataset nhnt-v7ka), published by Pierce County unincorporated. Source dataset. Collected window(s): Aug 21, 2026 – Oct 15, 2026. Last pulled Oct 18, 2026.

Metric: Residential = the source marks the permit's use as residential (permits with commercial or unknown use are not counted). Sewer & Septic = the permit's type or work description matches the Curbside Signal sewer and septic rules. Counts exclude void or cancelled permits. Dates are the jurisdiction's permit issue date. Records are deduplicated on source and permit number. How we count. Part of the Seattle-Tacoma-Bellevue, WA metro: every trade × city page there.

The honest limit. A permit usually means the job is already sold. We say that up front. The value is what happens around it:

  • Neighbor marketing around active jobs: same-age houses on the same street.
  • Cross-trade follow-on demand: new roof → solar, gutters, insulation; remodel → HVAC, electrical, landscaping, pool; new build → pest, security, landscaping.
  • Competitor intelligence: which contractors pull permits where (where the jurisdiction publishes it), and who to recruit as subs.
  • Early-stage projects for commercial trades and GC subs.

Follow-on: Sewer work follows repipes, remodels and new construction, and leads to landscaping repair.

Questions

How many residential sewer and septic permits were issued in Unincorporated Pierce County, WA recently?

117 residential sewer and septic permits in the public records we pulled, the 8 weeks ending Oct 15, 2026. Source: Pierce County unincorporated.

Which Unincorporated Pierce County ZIP codes have the most sewer and septic permits?

98374 (37 permits), 98391 (27 permits), 98444 (11 permits), by residential sewer and septic permit count the 8 weeks ending Oct 15, 2026. 13 ZIP codes had at least one permit.

What is the median declared value of a residential sewer and septic permit in Unincorporated Pierce County?

The source does not publish valuations for these permits.

How do I get the Unincorporated Pierce County sewer and septic permit list, and what does it cost?

Request a free sample for your ZIPs first. ZIP Pack is $29/mo for one trade and up to 5 ZIPs every Monday; Metro Feed is $99/mo for a whole metro and up to 3 trades, with daily alerts. Guarantee on every package: If a weekly file is late or missing, that month is free. If a month delivers under half the 8-week average permit count for your ZIPs and trade, the next month is free.

Unincorporated Pierce County sewer and septic leads, every Monday

Send your trade and ZIP codes. We'll reply with a real sample from the public records we pull, or tell you plainly that we don't cover you yet.

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