Single Match (S category)
Matches in the S category indicate that the record was matched to a single address candidate. The first character (S) reflects that MapMarker found a street address that matches your record. Within this category, a number of precision levels have been defined. The S code also appends 8 additional characters which describe how closely the input address matched an address in the reference data. These codes are described in the section following the S code definitions.
Each of the S codes is defined below. The second position in the code reflects the positional accuracy of the resulting point for the geocoded record.
| Code | Description |
|---|---|
| S1 | Single match, point located at a ZIP Code centroid. This is the same quality match as a Z1 result. |
| S2 | Single match, point located at a ZIP + 2 centroid. This is the same quality match as a Z2 result. |
| S3 | Single match, point located at a ZIP + 4® centroid. This is the same quality match as a Z3 result. |
| S4 | Single match, point located at a street centroid. |
| S5 | Single match, point located at a street address position. Because only street segment data is available, the interpolation is not as accurate as an S7 return. |
| S6 | Single match, point located at a point ZIP centroid. This is the same quality match as a Z6 result. |
| S7 | Single match, located at an interpolated point along a street segment. Because known point data is available, the S7 interpolation is more accurate than an S5 result. |
| S8 | Single match, point located at either the single point associated with an address point candidate or at an address point candidate that shares the same house number. No interpolation is required. |
| SX | Single match, point located at a street intersection. |
| S0 | single match, no coordinates available (very rare occurrence). |
| SC | Single close match where the original point has been moved a specified distance (usually along a perpendicular line) toward or away from the associated street segment. |
8-character S Code Definitions
For S category result codes, eight additional characters describe how closely the address in your table matches an address in the reference data set. The characters appear in the order listed in the following table. Any non-matched components are represented by a dash.
For example, the result code S5- -N-SCZA is for a single close match that matched the street name, street suffix direction, city and ZIP Code exactly, but could not match the house number, street prefix direction, or the street type. This record would be geocoded to the street address position of the match candidate.
| Code | Description |
|---|---|
| H | House Number |
| P | Street Prefix |
| N | Street Name |
| T | Street Type |
| S | Street Suffix |
| C | City Name |
| Z | ZIP Code |
| A | Address Dictionary (reference data set) |