Njirich & Sons Inc

Excavation contractor in Sonora, CA 95370

About this company

Njirich & Sons Inc is listed as an excavation contractor based in Sonora, California, in Tuolumne County. Federal motor carrier records list 23 drivers and 23 trucks for the company. It is one of 2 excavation and demolition companies in ZIP 95370.

Fleet size

Drivers23

Trucks23

Last federal filing: Mar 2026. Source: FMCSA.

Moderate market, crowded fieldArea profitability for excavation and demolition in ZIP 95370

Housing demand49

Sales pace, new listings and new construction. Source: Zillow

Customer spending power74

Household income and home values

Room for another company29

More crowded than 71% of US ZIPs

Scored against every US ZIP. An index of local conditions, not this company's results.

County context

One of 4 excavation and demolition companies in Tuolumne County, CA.

64 general contractors in Tuolumne County, CA.

All 130 construction companies in Tuolumne County, CA.

ZIP 95370 at a glance

Population: 28,355 (106 per sq mi)
Median age: 49
Households: Median income $82,990 · 42% earn six figures
Housing: 69% owner-occupied
Workforce: 54% labor-force participation · 7.4% unemployment

ZIP figures are US Census estimates for the ZIP area, not the company.

Housing market around ZIP 95370

Figures describe the local area, not this company.

Typical home value$401,000−1.6% past year · +32% in 10 years

Typical rent$1,536

12-month value outlook−1.9%

New homes permitted, 202588Tuolumne County

Days to sale agreement29Sonora metro

Listings with a price cut24.5%Sonora metro

Sale price vs list98.6%Sonora metro

Source: Zillow (home values, rent, outlook and metro sales), data through Sep 2026. Permits: U.S. Census Bureau.

Typical home value, last 10 years

Source: Zillow Home Value Index, Sep 2026.

Local building angle: Tuolumne County permitted 88 new homes in 2025. 13% of the homes in this ZIP were built since 2000.

Local figures are estimates from public records and Zillow housing data, updated regularly.