On Tuesday, December 7, 2021, the City of San Diego Redistricting Commission voted to approve changes to the Preliminary Map which can be reviewed in Map 91107. This should be the final map. All of the Mira Mesa Community is included in District 6. The Eastern part of University City, east of I-5, is also now in District 6, while Clairemont has been moved to District 2 and Park Village in Rancho Penasquitos has been moved to District 5. Scripps Ranch is split between districts 5 and 6.
On December 9, 2021, the County of San Diego Redistricting Commission voted to approve this map, which keeps all of Mira Mesa in District 3. District 3 also includes all Coastal communities within the City of San Diego and most of the inland City of San Diego north of Mira Mesa. Scripps Ranch will be in District 2, along with Poway and all of the rural parts of the County, stretching to its eastern boundary.
For more information, see the City and County redistricting commission sites, linked above.