Onx map accuracy

[Bob33]

It definitely does not upgrade every year. I don't know the rate of when they update but I have bought some property in Okanogan County four years ago and it still has the old owners info on it.

onX gets much of their data from counties. If the counties have four year old data, that doesn't mean onX doesn't update. GIGO.

[dscubame]

.  The only response to your question is... You will need a surveyor.

[biggfish]

If they get within 10 you then also have to about for the margin of error with your gps. The more satellites you ping the better the accuracy, but it's not exact.

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[Stein]

Gps is not exact. Can be perfect can be off by 200 ft.  Uncle sam incorporates errors on purpose as antiguidance precautions

This used to be a big issue, but I don't think it is anymore.

On X has data from the county as mentioned.  The device you are looking at has some error, all are different depending on your unit, antenna, number of satellites, etc.  If there was no error with a phone and a $30 service, being a surveyor would be a pretty easy job.

In addition to the error with any GPS, the property line could move due to legal reasons.  If a neighbor puts a fence up in the wrong place and it stays there long enough uncontested, the property line could move through adverse possession.

[Shannon]

Bobb33-The county has had my name on the property for several years but Onyx still has the old owner on it. Not sure how often they update but my area has been at least 3-4 years.