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The New Sarpy handbook

Living in New Sarpy, LA: what to set up and who to call

New Sarpy has no town government of its own, so St. Charles Parish runs its elections and most services, and its children attend St. Charles Parish School District. For home internet, most of New Sarpy can choose between Cox Communications and AT&T.

Who supplies the water?Which school will my kid attend?How do I register to vote?ZIP codes
New Sarpy has no town government. It’s a census-designated place in St. Charles Parish, so the county and regional agencies provide most services. This page answers what we can; the same answers appear on New Sarpy’s town page under “Getting set up”.

I’m new in town

What to set up in New Sarpy, and who provides it. Tap an answer for the details and where they come from.

WaterSt Charles Parish Dept of Waterworks0 health-based violations in 5 years · EPAMore →Internet4 providers96% of addresses get 100/20 MbpsMore →Trash & dumpNot on file yetWe don’t have New Sarpy’s trash rules yetMore →SchoolSt. Charles Parish School DistrictWhich school depends on grade and addressMore →Register to voteOnlineRules from vote.govMore →ZIP code70047Where people live, not P.O. boxesMore →
Home services

Power, water and internet

Who to call to start service at a new address in New Sarpy.

Drinking water · reported to EPA

Water comes from St Charles Parish Dept of Waterworks

St Charles Parish Dept of Waterworks supplies almost all of New Sarpy. It draws surface water and serves 52,879 people in all.

No health-based violations reported to EPA in the five years to October 2026, like 90% of the 597 systems serving 50,001–100,000 people.

Lead, 90th percentile2.0 ppb
015 ppb action level20

The latest lead result on file, the 90th percentile of homes sampled in Jan 2024–Dec 2026, was 2.0 ppb, below the 15 ppb action level that applied. That’s higher than 66% of similar systems’ latest results.

The system’s full record: EPA ECHO report

EPA SDWIS via Envirofacts (violations pulled Oct 9, 2026) and ECHO (lead samples, 2026Q3); service area: EPA Community Water System Service Area Boundaries v3.0. Violations are counted by the start of their compliance period. LA1089001.

Internet

4 home internet providers serve New Sarpy

96% of 597 addresses can get 100/20 Mbps; 48% can get fiber.

ProviderTechnologyAddressesFastest (Mbps)
Cox CommunicationsCable92%2,000/35
AT&TDSL, Fiber, Fixed wireless74%5,000/5,000
T-MobileFixed wireless76%100/20
VerizonFixed wireless10%300/20

FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.

Trash & recycling

We don’t have New Sarpy’s trash rules yet

Pickup rules, the dump and recycling in New Sarpy.

Trash, recycling and bulk pickupNot on fileNew Sarpy has no town government of its own, so look for trash and recycling rules on the county’s site.
Schools

Where your child goes to school

Public school districts and the school path by grade.

New Sarpy kids go to
PK–56 elementary schoolsDepends on your address
6–84 middle schoolsDepends on your address
9–122 high schoolsDepends on your address

New Sarpy is in St. Charles Parish School District.

ASchool gradeSee Schools →

U.S. Department of Education, NCES Common Core of Data, 2024–25. Enrollment rules and registration are the district’s.

Government & voting

No town hall: the county runs things

New Sarpy is unincorporated, so St. Charles Parish is the local government.

Local governmentSt. Charles ParishNew Sarpy is a census-designated place: no town hall of its ownCensus
Who runs elections hereSt Charles Parish Registrar of VotersElections here are run by St. Charles Parish (county election office). Its listing was last updated in 2015, so we don’t show its contacts: check voterportal.sos.la.gov.FVAP, Aug 2015
Register to voteOnlineIn Louisiana you can register online until 20 days before Election Day, in person until 30 days before Election Day, or by mail (postmarked 30 days before).vote.govCheck your registration and polling placevoterportal.sos.la.govThe state’s voter lookup

Election office: FVAP local election office directory, updated Aug 2015; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Aug 3, 2026.

ZIP codes & area codes

New Sarpy is in ZIP code 70047

ZIP codes where New Sarpy residents live, with the share of the town in each.

ZIPPost office nameShare of New SarpyZIP’s residents in New Sarpy
70047Destrehan, LA100%9%

70078 is P.O. box or single-organization ZIP with no homes.

Census 2020 ZIP Code Tabulation Areas, by census block; post office names: GeoNames (CC BY 4.0). ZIPs created since 2020 are missing.

Everyday places

Getting around, the ER and the library

One line each; the subject pages have the rest.

Nearest emergency roomSt. Charles Parish Hospital3.9 miles awayGet a library cardSt. Charles Parish Library160 W. Campus Drive · (985) 764-9643

ER: CMS hospital data. Library: IMLS Public Libraries Survey, FY2024.

Questions about living in New Sarpy

Who supplies New Sarpy’s drinking water, and has it had violations?

St Charles Parish Dept of Waterworks (EPA ID LA1089001). It reported no health-based violations to EPA in the five years to October 2026; 90% of systems its size had none. Its latest lead 90th percentile was 2.0 ppb (Jan 2024–Dec 2026), against a 15 ppb action level.

What internet providers serve New Sarpy?

Cox Communications, AT&T, T-Mobile, Verizon (FCC, as of December 2025).

What ZIP codes are in New Sarpy?

70047. Census 2020 ZIP Code Tabulation Areas.

What school district is New Sarpy in?

St. Charles Parish School District.

How do I register to vote in New Sarpy?

In Louisiana you can register online until 20 days before Election Day, in person until 30 days before Election Day, or by mail (postmarked 30 days before). Elections here are run by the St Charles Parish Registrar of Voters. Check your registration at voterportal.sos.la.gov.

Sources & dates

Every answer above names its source. Here they are with their dates.

  • Water: EPA SDWIS (Envirofacts, pulled Oct 9, 2026), ECHO SDWA 2026Q3, EPA CWS Service Area Boundaries v3.0.
  • Trash: OpenStreetMap, Geofabrik extract of Oct 9, 2026. © OpenStreetMap contributors (ODbL).
  • ZIP codes: Census 2020 ZCTA relationship files; GeoNames postal codes (CC BY 4.0).
  • Schools: NCES Common Core of Data, 2024–25.
  • Registration: vote.gov, updated Aug 3, 2026 (read Oct 10, 2026). Official sites and area codes: Wikidata.
  • Election office: FVAP local election office directory (fetched Oct 10, 2026; each record dated), EAC EAVS 2024 jurisdictions; registration and lookup links from vote.gov’s state data, checked Oct 10, 2026.
  • Internet: FCC National Broadband Map, as of December 2025.