In Arapahoe County, Colorado, which covers Centennial, we have measured 16,358 parcels on septic and 138,986 on sewer. That is a county measurement. We do not hold a septic count for Centennial on its own and this page does not estimate one.
Centennial is a city in Arapahoe County, Colorado. The Census Bureau puts its internal point at 39.590864, -104.863808 and its land area at 30.16 square miles. Septic permitting and record keeping happen at the county level, not the city level, which is why every figure below is attributed to the county and linked back to the county page it came from.
| County | Records we hold | Parcels on septic | Parcels on sewer | County records portal | Searchable without an account |
|---|---|---|---|---|---|
| Arapahoe County | 13,964 | 16,358 | 138,986 | county portal | no account needed |
We hold 13,964 septic records for Arapahoe County, Colorado. That is a substantial partial collection rather than a complete one, so a Centennial property may or may not appear in it, and the county archive remains the authority. The county is predominantly sewered: only 16,358 of 155,344 classified parcels are on septic. Septic properties near Centennial are the exception, which is exactly why owners often do not know they have one. The county publishes a records portal that we were able to search without creating an account, which makes checking a specific parcel something you can do yourself in a few minutes.
Septic is one subject with very different jobs inside it. These go straight to the page that does yours.
| If you are a | Go to | Because it covers |
|---|---|---|
| Homeowner | Septic pumping in Centennial | keeping the system you have working |
| Buyer or seller | Buying or selling in Centennial | what to pull and check before closing |
| Realtor | Buying or selling in Centennial | the same records a seller needs on file |
| Designer or engineer | Septic design in Centennial | design flow, tank capacity, dispersal sizing |
| Installer or contractor | Septic installation in Centennial | site evaluation, permit sequence, inspection |
| Septic pumper | Septic pumping in Centennial | tank access, lids and service interval |
| Inspector | Septic inspection in Centennial | what gets checked and what a failure means |
| Land investor | Septic installation in Centennial | whether raw land can take a system at all |
These are real businesses we hold an address for, not a ranked or paid list. We take no fee and list nobody preferentially. Confirm current licensing with your county or state before hiring.
With an address in Centennial itself
| Business | Town on file | Phone | Rating |
|---|---|---|---|
| Rocky Mountain Sewer-Jet | Centennial | (303) 791-5041 | 3.9 (17) |
| Steve's Pumping Service | Centennial | (303) 690-1048 | — |
No. We measure septic and sewer at parcel level and roll it up by county. In Arapahoe County, Colorado, which covers Centennial, we have measured 16,358 parcels on septic and 138,986 on sewer. That is a county measurement. We do not hold a septic count for Centennial on its own and this page does not estimate one.
Centennial is in Arapahoe County, Colorado.
From the Census ZCTA-to-place relationship file, with the share of Centennial’s land area that falls in each. A ZIP is not a place boundary and the two only ever partly agree, which is exactly why both pages exist.
Straight-line distance from the Census internal point of Centennial.
Parcel Perfect generates a code-shaped septic design and as-built style drawing for a parcel from the records and site data we hold, and shows every parcel we have classified as septic or sewer on one map. Both are open to use for any parcel in Arapahoe County, Colorado.